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B2PB-B
PRACTICE BOO
K
Allyn Fisher
The pages in this Practice Book can be assigned in order to provide practice with key
skills during each unit of the Bridges in Mathematics curriculum. The pages can also
be used with other elementary math curricula. If you are using this Practice Book with
another curriculum, use the tables of pages grouped by skill (iii–x) to assign pages
based on the skills they address, rather than in order by page number.
Bridges in Mathematics Grade 2 Practice Book Blacklines
The Math Learning Center, PO Box 12929, Salem, Oregon 97309. Tel. 1 800 575–8130.
© 2009 by The Math Learning Center
All rights reserved.
Prepared for publication on Macintosh Desktop Publishing system.
Printed in the United States of America.
QP918 P0110
The Math Learning Center grants permission to classroom teachers to reproduce blackline
masters in appropriate quantities for their classroom use.
Bridges in Mathematics is a standards-based K–5 curriculum that provides a unique blend
of concept development and skills practice in the context of problem solving. It incorpo-
rates the Number Corner, a collection of daily skill-building activities for students.
The Math Learning Center is a nonprofit organization serving the education community.
Our mission is to inspire and enable individuals to discover and develop their mathematical
confidence and ability. We offer innovative and standards-based professional development,
curriculum, materials, and resources to support learning and teaching. To find out more,
visit us at www.mathlearningcenter.org.
Practice Books
The student blacklines in this packet are alsoavailable as a pre-printed student book.
B2PBISBN 9781602622449
PRACTICE BOO
K
Allyn Fisher
Bridges Practice Books
Single Copy B2PB
Pack of 10 B2PB10
For pricing or to order please call 1 800 575–8130.
Teacher MaterialsIntroduction iPractice Pages Grouped by Skill iiiAnswer KeysUnit One xi
Unit Two xiv
Unit Three xv
Unit Four xix
Unit Five xxii
Unit Six xxv
Unit Seven xxvi
Unit One: Sorting, Patterning & NumberUse anytime after Session 12Numbers & Words, 11–20 1
Apples & Shapes 2
Adding & Subtracting 0’s, 1’s, & 2’s 3
Dollars & Dimes 4
Adding Doubles & Neighbors 5
Fish & Farm Problems 6
Number Lines & Counting Patterns 7
Baseball Cards & Darts 8
Thinking about 2’s 9
Fish & Money Problems 10
Fact Families: 6’s 11
Crayons & Coins 12
Use anytime after Session 23Dominoes & Counting Patterns 13
Fish & Pictures 14
Numbers & Coins 15
Blocks & Apples 16
Fact Families: 7’s 17
Pennies, Bikes, & Trikes 18
Fingers & Toes 19
Inchworm’s Garden 20
Thinking about 5’s 21
Shells & Coins 22
Fact Families: 8’s 23
Inchworm’s Paths 24
Unit Two: Hungry Ants Story ProblemsUse anytime after Session 10Ella’s Piggy Bank 25
Pets & Coins 26
Fact Families: 9’s 27
Fish Problems 28
Cubes on a Line 29
Ant Paths 30
Fact Families: 10’s 31
Ant Story Problems 32
Triangle Fact Families 33
T-Shirts & Turtles 34
All about Tens 35
Dollars & Quarters 36
Unit Three: Addition, Subtraction & ProbabilityUse anytime after Session 12Facts to 8 37
Flowers & Oranges 38
Telling Time on Two Kinds of Clocks 39
Ladybug Story Problems 40
Facts to 9 41
Cookies & Apples 42
Number Patterns 43
Measuring Ladybug Paths 44
Facts to 10 45
Snacks 46
Addition & Subtraction Tables 47
Comparing Numbers to 100 48
Use anytime after Session 24Missing Numbers 49
Beads & Patterns 50
Doubles & Neighbors 51
The Gym Teacher & Jason at the School Store 52
Fast Nines & Fast Tens 53
Baseball Cards & Teri at the School Store 54
Scout Them Out Add & Subtract 55
Extra Facts 56
Make Ten Facts 57
A.M. or P.M.? 58
More Scout Them Outs 59
Numbers & Words 60
Unit Four: Exploring Shapes, Symmetry, Area & NumberUse anytime after Session 12Mystery Shapes 61
More Extra Facts Practice 62
More Make Ten Facts 63
Using Make Ten Facts to Help Subtract 64
Symmetry 65
The Shapes Shop 66
Thinking about Place Value 67
Two Different Ways to Write Money Amounts 68
Subtraction Strategies 69
Sara’s Pockets 70
Halves 71
Comparing Numbers to 300 72
Use anytime after Session 25Fact Family Triangles 73
Bowls & Vans 74
Puzzles about Ten & More 75
Another Trip to the Shapes Shop 76
Make Tens to Subtract 77
Books & Granola Bars 78
More Fact Family Triangles 79
Ants & the Number Box 80
Adding & Subtracting Tens 81
Apples & Snow People 82
Half & Half 83
Sharing Stories 84
Unit Five: Branching into Larger Numbers Money & Place ValueUse anytime after Session 17Missing Numbers 85
Pet Shop Equations 86
Tens & Ones 87
Nuts & Carrots 88
Different Ways to Look at 300 89
Different Ways to Look at the Same Number 90
Time & Money Problems 91
Hundreds, Tens & Ones 92
Shopping & the Number Box 93
Base Ten Addition 94
Shopping Problems 95
Base Ten Subtraction 96
Coin Problems 97
Use anytime after Session 35Adding & Subtracting Tens & Nines 98
Wheels 99
Place Value Practice 100
Pencil Puppy & Pal 101
2-Digit Addition 102
More Facts Than You Need 103
Numbers & Clocks 104
Sam’s Hot Dog Stand 105
2-Digit Subtraction 106
The Pet Graph 107
More 2-Digit Addition 108
More 2-Digit Subtraction 109
Unit Six: Get Those Marbles Rolling Measuring & StatisticsUse anytime after Session 13Which Makes the Most Sense? 110
Estimation Problems 111
Adding & Subtracting Practice 112
Grandma’s Button Box 113
2-Digit Addition Practice 114
Lines & Buttons 115
Time & Money 116
Cubes & Homework 117
More Place Value Practice 118
Homework & 100 119
2-Digit Subtraction Practice 120
Make Your Own Problems 121
Unit Seven: Games, Graphs & Toys Probability, Statistics & ComputationUse anytime after Session 14Solving Equations 122
Apples & Orange Slices 123
The Second Graders Clean Their Desks 124
Measuring Problems 125
Fractions 126
The Army Ants Measure Up 127
Place Value Review 128
More about Meters 129
Adding & Subtracting 130
Crayons 131
Pedro’s Birthday 132
More Crayon Problems 133
Use anytime after Session 25Digits & Number Riddles 134
The Toy Store 135
Enough Time in the Day 136
More Toy Store Problems 137
More Fractions 138
Pizza Problems 139
Reading & Writing Numbers 140
How Long Is a Shark? 141
Addition & Subtraction Practice 142
Maria Jose’s Day 143
More Number Patterns 144
Breanna’s Pockets 145
Bridges in Mathematics nn i© The Math Learning Center
Practice Book
Bridges in Mathematics Grade 2 Practice Book BlacklinesThere are 144 blacklines in this document, designed to be photocopied to provide second grade students with practice in key skill areas, including:• reading, writing, comparing, and ordering numbers to 1,000 • skip counting and number patterns • addition and subtraction facts to 18• place value concepts• 2- and 3-digit addition• early multiplication and division• fractions• measurement, money, time, graphing• problem solving
This set of blacklines also includes the following materials for the teacher:• This introduction• A complete listing of the student pages grouped by skill (see pages iii–x)• Answer Keys (see pages xi–xxix)
Note These teacher materials are not included in the bound student version of the Practice Book, which is sold separately.
While the Practice Book pages are not integral to the Bridges Grade 2 program, they may help you better address the needs of some or all of your students, as well as the grade-level expectations in your particu-lar state. The Practice Book pages may be assigned as seatwork or homework after Bridges sessions that don’t include Home Connections. These pages may also serve as a source of:• skill review• informal paper-and-pencil assessment • preparation for standardized testing• differentiated instruction
Every set of 12 pages has been written to follow the instruction in roughly half a Bridges unit. Practice pages 1–12 can be used any time after Unit One, Session 12; pages 13–24 can be used any time after Unit One, Session 23; and so on. Recommended timings are noted at the top of each page. If you are using this Practice Book with another curriculum, use the lists that follow to assign pages based on the skills they address.
Some of the problems on certain pages have been marked with a Challenge icon. These problems may not be appropriate for all the students in your classroom; consider assigning them selectively.
Bridges in Mathematics nn iii© The Math Learning Center
Practice Book
Grade 2 Practice Book Pages Grouped by Skill
READING, WRITING , COMPARING & ORDERING 2-DIGIT NUMBERSPage Title Page Number Recommended Timing
Numbers & Words, 11–20 1 Anytime after Bridges Unit 1, Session 12
Number Lines & Counting Patterns 7 Anytime after Bridges Unit 1, Session 12
Thinking about 2’s 9 Anytime after Bridges Unit 1, Session 12
Numbers & Coins 15 Anytime after Bridges Unit 1, Session 23
Thinking about 5’s 21 Anytime after Bridges Unit 1, Session 23
Cubes on a Line 29 Anytime after Bridges Unit 2, Session 10
Number Patterns 43 Anytime after Bridges Unit 3, Session 12
Comparing Numbers to 100 48 Anytime after Bridges Unit 3, Session 12
Numbers & Words 60 Anytime after Bridges Unit 3, Session 24
READING, WRITING , COMPARING & ORDERING 3-DIGIT NUMBERSPage Title Page Number Recommended Timing
Comparing Numbers to 300 72 Anytime after Bridges Unit 4, Session 12
Numbers & Clocks 104 Anytime after Bridges Unit 5, Session 35
Sam’s Hot Dog Stand 105 Anytime after Bridges Unit 5, Session 35
More Place Value Practice 118 Anytime after Bridges Unit 6, Session 13
Place Value Review 128 Anytime after Bridges Unit 7, Session 14
Reading & Writing Numbers 140 Anytime after Bridges Unit 7, Session 25
How Long Is a Shark? 141 Anytime after Bridges Unit 7, Session 25
SKIP COUNTING & NUMBER PATTERNSPage Title Page Number Recommended Timing
Number Lines & Counting Patterns 7 Anytime after Bridges Unit 1, Session 12
Thinking about 2’s 9 Anytime after Bridges Unit 1, Session 12
Dominoes & Counting Patterns 13 Anytime after Bridges Unit 1, Session 23
Fingers & Toes 19 Anytime after Bridges Unit 1, Session 23
Thinking about 5’s 21 Anytime after Bridges Unit 1, Session 23
Cubes on a Line 29 Anytime after Bridges Unit 2, Session 10
Number Patterns 43 Anytime after Bridges Unit 3, Session 12
Missing Numbers 49 Anytime after Bridges Unit 3, Session 24
Beads & Patterns 50 Anytime after Bridges Unit 3, Session 24
More Number Patterns 144 Anytime after Bridges Unit 7, Session 25
© The Math Learning Centeriv nn Bridges in Mathematics
Practice Book
ADDITION & SUBTRACTION FACTS TO 10Page Title Page Number Recommended Timing
Apples & Shapes 2 Anytime after Bridges Unit 1, Session 12
Adding & Subtracting 0’s, 1’s & 2’s 3 Anytime after Bridges Unit 1, Session 12
Dollars & Dimes 4 Anytime after Bridges Unit 1, Session 12
Adding Doubles & Neighbors 5 Anytime after Bridges Unit 1, Session 12
Fact Families: 6’s 11 Anytime after Bridges Unit 1, Session 12
Dominoes & Counting Patterns 13 Anytime after Bridges Unit 1, Session 23
Fact Families: 7’s 17 Anytime after Bridges Unit 1, Session 23
Fact Families: 8’s 23 Anytime after Bridges Unit 1, Session 23
Fact Families: 9’s 27 Anytime after Bridges Unit 2, Session 10
Fact Families: 10’s 31 Anytime after Bridges Unit 2, Session 10
Triangle Fact Families 33 Anytime after Bridges Unit 2, Session 10
All about Tens 35 Anytime after Bridges Unit 2, Session 10
Facts to 8 37 Anytime after Bridges Unit 3, Session 12
Facts to 9 41 Anytime after Bridges Unit 3, Session 12
Facts to 10 45 Anytime after Bridges Unit 3, Session 12
Addition & Subtraction Tables 47 Anytime after Bridges Unit 3, Session 12
ADDITION & SUBTRACTION FACTS TO 18Page Title Page Number Recommended Timing
Fish & Farm Problems 6 Anytime after Bridges Unit 1, Session 12
Baseball Cards & Darts 8 Anytime after Bridges Unit 1, Session 12
Fish & Money Problems 10 Anytime after Bridges Unit 1, Session 12
Crayons & Coins 12 Anytime after Bridges Unit 1, Session 12
Fish & Pictures 14 Anytime after Bridges Unit 1, Session 23
Blocks & Apples 16 Anytime after Bridges Unit 1, Session 23
Pennies, Bikes & Trikes 18 Anytime after Bridges Unit 1, Session 23
Shells & Coins 22 Anytime after Bridges Unit 1, Session 23
Pets & Coins 26 Anytime after Bridges Unit 2, Session 10
Fish Problems 28 Anytime after Bridges Unit 2, Session 10
Ant Story Problems 32 Anytime after Bridges Unit 2, Session 10
T-Shirts & Turtles 34 Anytime after Bridges Unit 2, Session 10
Dollars & Quarters 36 Anytime after Bridges Unit 2, Session 10
Flowers & Oranges 37 Anytime after Bridges Unit 3, Session 12
Cookies & Apples 42 Anytime after Bridges Unit 3, Session 12
Snacks 46 Anytime after Bridges Unit 3, Session 12
Missing Numbers 49 Anytime after Bridges Unit 3, Session 24
Doubles & Neighbors 51 Anytime after Bridges Unit 3, Session 24
The Gym Teacher & Jason at the School Store 52 Anytime after Bridges Unit 3, Session 24
Fast Nines & Fast Tens 53 Anytime after Bridges Unit 3, Session 24
Baseball Cards & Teri at the School Store 54 Anytime after Bridges Unit 3, Session 24
Scout Them Out Add & Subtract 55 Anytime after Bridges Unit 3, Session 24
Grade 2 Practice Book Pages Grouped by Skill (cont.)
Bridges in Mathematics nn v© The Math Learning Center
Practice Book
ADDITION & SUBTRACTION FACTS TO 18Extra Facts 56 Anytime after Bridges Unit 3, Session 24
More Extra Facts Practice 62 Anytime after Bridges Unit 4, Session 12
Using Make Ten Facts to Help Subtract 64 Anytime after Bridges Unit 4, Session 12
Adding & Subtracting Tens & Nines 98 Anytime after Bridges Unit 5, Session 35
Adding & Subtracting Practice 112 Anytime after Bridges Unit 6, Session 13
Addition & Subtraction Practice 142 Anytime after Bridges Unit 7, Session 25
SOLVING EQUATIONSPage Title Page Number Recommended Timing
Missing Numbers 49 Anytime after Bridges Unit 3, Session 24
Pet Shop Equations 86 Anytime after Bridges Unit 5, Session 17
Solving Equations 122 Anytime after Bridges Unit 7, Session 14
PLACE VALUE & THE BASE TEN SYSTEMPage Title Page Number Recommended Timing
Cubes on a Line 29 Anytime after Bridges Unit 2, Session 10
Comparing Numbers to 100 48 Anytime after Bridges Unit 3, Session 12
Comparing Numbers to 300 72 Anytime after Bridges Unit 4, Session 12
Tens & Ones 87 Anytime after Bridges Unit 5, Session 17
Different Ways to Look at 300 89 Anytime after Bridges Unit 5, Session 17
Different Ways to Look at the Same Number 90 Anytime after Bridges Unit 5, Session 17
Hundreds, Tens & Ones 92 Anytime after Bridges Unit 5, Session 17
Place Value Practice 100 Anytime after Bridges Unit 5, Session 35
Pencil Puppy & Pal 101 Anytime after Bridges Unit 5, Session 35
Numbers & Clocks 104 Anytime after Bridges Unit 5, Session 35
More Place Value Practice 118 Anytime after Bridges Unit 6, Session 13
Place Value Review 128 Anytime after Bridges Unit 7, Session 14
Digits & Number Riddles 134 Anytime after Bridges Unit 7, Session 25
Reading & Writing Numbers 140 Anytime after Bridges Unit 7, Session 25
Grade 2 Practice Book Pages Grouped by Skill (cont.)
© The Math Learning Centervi nn Bridges in Mathematics
2- & 3-DIGIT ADDITION & SUBTRACTIONPage Title Page Number Recommended Timing
Snacks (challenge) 46 Anytime after Bridges Unit 3, Session 12
The Gym Teacher & Jason at the School Store (challenge) 52 Anytime after Bridges Unit 3, Session 24
Baseball Cards & Teri at the School Store (challenge) 54 Anytime after Bridges Unit 3, Session 24
Ants & the Number Box (challenge) 80 Anytime after Bridges Unit 4, Session 25
Adding & Subtracting Tens 81 Anytime after Bridges Unit 4, Session 25
Shopping & the Number Box 93 Anytime after Bridges Unit 5, Session 17
Base Ten Addition 94 Anytime after Bridges Unit 5, Session 17
Shopping Problems 95 Anytime after Bridges Unit 5, Session 17
Base Ten Subtraction 96 Anytime after Bridges Unit 5, Session 17
Place Value Practice 100 Anytime after Bridges Unit 5, Session 35
Pencil Puppy & Pal 101 Anytime after Bridges Unit 5, Session 35
2-Digit Addition 102 Anytime after Bridges Unit 5, Session 35
More Facts Than You Need 103 Anytime after Bridges Unit 5, Session 35
Sam’s Hot Dog Stand 105 Anytime after Bridges Unit 5, Session 35
2-Digit Subtraction 106 Anytime after Bridges Unit 5, Session 35
The Pet Graph 107 Anytime after Bridges Unit 5, Session 35
More 2-Digit Addition 108 Anytime after Bridges Unit 5, Session 35
More 2-Digit Subtraction 109 Anytime after Bridges Unit 5, Session 35
Adding & Subtracting Practice 112 Anytime after Bridges Unit 6, Session 13
Grandma’s Button Box 113 Anytime after Bridges Unit 6, Session 13
2-Digit Addition Practice 114 Anytime after Bridges Unit 6, Session 13
More Place Value Practice 118 Anytime after Bridges Unit 6, Session 13
2-Digit Subtraction Practice 120 Anytime after Bridges Unit 6, Session 13
Make Your Own Problems 121 Anytime after Bridges Unit 6, Session 13
Solving Equations 122 Anytime after Bridges Unit 7, Session 14
The Second Graders Clean Their Desks 124 Anytime after Bridges Unit 7, Session 14
Adding & Subtracting 130 Anytime after Bridges Unit 7, Session 14
Crayons 131 Anytime after Bridges Unit 7, Session 14
More Crayon Problems 133 Anytime after Bridges Unit 7, Session 14
The Toy Store 135 Anytime after Bridges Unit 7, Session 25
More Toy Store Problems 137 Anytime after Bridges Unit 7, Session 25
Reading & Writing Numbers 140 Anytime after Bridges Unit 7, Session 25
COMPUTATIONAL ESTIMATIONPage Title Page Number Recommended Timing
Which Makes Most Sense? 110 Anytime after Bridges Unit 6, Session 13
Estimation Problems 111 Anytime after Bridges Unit 6, Session 13
Grade 2 Practice Book Pages Grouped by Skill (cont.)
Bridges in Mathematics nn vii© The Math Learning Center
Practice Book
EARLY MULTIPLICATION & DIVISION CONCEPTSPage Title Page Number Recommended Timing
Thinking about 2’s 9 Anytime after Bridges Unit 1, Session 12
Fingers & Toes 19 Anytime after Bridges Unit 1, Session 23
Ant Story Problems 32 Anytime after Bridges Unit 2, Session 10
Flowers & Oranges (challenge) 38 Anytime after Bridges Unit 3, Session 12
Cookies & Apples (challenge) 42 Anytime after Bridges Unit 3, Session 12
Bowls & Vans 74 Anytime after Bridges Unit 4, Session 25
Books & Granola Bars 78 Anytime after Bridges Unit 4, Session 25
Ants & the Number Box 80 Anytime after Bridges Unit 4, Session 25
Apples & Snow People 82 Anytime after Bridges Unit 4, Session 25
Sharing Stories 84 Anytime after Bridges Unit 4, Session 25
Nuts & Carrots 88 Anytime after Bridges Unit 5, Session 17
Apples & Orange Slices 123 Anytime after Bridges Unit 7, Session 14
More Number Patterns 144 Anytime after Bridges Unit 7, Session 25
FRACTIONSPage Title Page Number Recommended Timing
Half & Half 83 Anytime after Bridges Unit 4, Session 25
Fractions 126 Anytime after Bridges Unit 7, Session 14
More Fractions 138 Anytime after Bridges Unit 7, Session 25
Pizza Problems 139 Anytime after Bridges Unit 7, Session 25
MONEYPage Title Page Number Recommended Timing
Fish & Money Problems 10 Anytime after Bridges Unit 1, Session 12
Crayons & Coins 12 Anytime after Bridges Unit 1, Session 12
Numbers & Coins 15 Anytime after Bridges Unit 1, Session 23
Ella’s Piggy Bank 25 Anytime after Bridges Unit 2, Session 10
The Shapes Shop 66 Anytime after Bridges Unit 4, Session 12
Two Different Ways to Write Money Amounts 68 Anytime after Bridges Unit 4, Session 12
Another Trip to the Shapes Shop 76 Anytime after Bridges Unit 4, Session 25
Tens & Ones 87 Anytime after Bridges Unit 5, Session 17
Time & Money Problems 91 Anytime after Bridges Unit 5, Session 17
Coin Problems 97 Anytime after Bridges Unit 5, Session 17
Time & Money 116 Anytime after Bridges Unit 6, Session 13
Crayons 131 Anytime after Bridges Unit 7, Session 14
More Crayon Problems 133 Anytime after Bridges Unit 7, Session 14
The Toy Store 135 Anytime after Bridges Unit 7, Session 25
More Toy Store Problems 137 Anytime after Bridges Unit 7, Session 25
Grade 2 Practice Book Pages Grouped by Skill (cont.)
© The Math Learning Centerviii nn Bridges in Mathematics
Practice Book
TIMEPage Title Page Number Recommended Timing
Telling Time on Two Kinds of Clocks 39 Anytime after Bridges Unit 3, Session 12
A.M. or P.M.? 58 Anytime after Bridges Unit 3, Session 24
Time & Money Problems 91 Anytime after Bridges Unit 5, Session 17
Adding & Subtracting Tens & Nines 98 Anytime after Bridges Unit 5, Session 35
Numbers & Clocks 104 Anytime after Bridges Unit 5, Session 35
Time & Money 116 Anytime after Bridges Unit 6, Session 13
Pedro’s Birthday 132 Anytime after Bridges Unit 7, Session 14
Enough Time in the Day 136 Anytime after Bridges Unit 7, Session 25
Maria Jose’s Day 143 Anytime after Bridges Unit 7, Session 25
MEASUREMENT (LENGTH IN U.S. CUSTOMARY UNITS)Page Title Page Number Recommended Timing
Inchworm’s Garden 20 Anytime after Bridges Unit 1, Session 23
Inchworm’s Paths 24 Anytime after Bridges Unit 1, Session 23
More Number Patterns 144 Anytime after Bridges Unit 7, Session 25
MEASUREMENT (LENGTH IN METRIC UNITS)Page Title Page Number Recommended Timing
Ant Paths 30 Anytime after Bridges Unit 2, Session 10
Measuring Ladybug Paths 44 Anytime after Bridges Unit 3, Session 12
Measuring Problems 125 Anytime after Bridges Unit 7, Session 14
The Army Ants Measure Up 127 Anytime after Bridges Unit 7, Session 14
More about Meters 129 Anytime after Bridges Unit 7, Session 14
GEOMETRYPage Title Page Number Recommended Timing
Symmetry 65 Anytime after Unit 4, Session 12
GRAPHINGPage Title Page Number Recommended Timing
Ella’s Piggy Bank 25 Anytime after Bridges Unit 2, Session 10
The Pet Graph 107 Anytime after Bridges Unit 5, Session 35
Grandma’s Button Box 113 Anytime after Bridges Unit 6, Session 13
The Second Graders Clean Their Desks 124 Anytime after Bridges Unit 7, Session 14
Grade 2 Practice Book Pages Grouped by Skill (cont.)
Bridges in Mathematics nn ix© The Math Learning Center
Practice Book
PROBLEM SOLVINGPage Title Page Number Recommended Timing
Apples & Shapes 2 Anytime after Bridges Unit 1, Session 12
Dollars & Dimes 4 Anytime after Bridges Unit 1, Session 12
Fish & Farm Problems 6 Anytime after Bridges Unit 1, Session 12
Baseball Cards & Darts 8 Anytime after Bridges Unit 1, Session 12
Fish & Money Problems 10 Anytime after Bridges Unit 1, Session 12
Crayons & Coins 12 Anytime after Bridges Unit 1, Session 12
Fish & Pictures 14 Anytime after Bridges Unit 1, Session 23
Blocks & Apples 16 Anytime after Bridges Unit 1, Session 23
Pennies, Bikes & Trikes 18 Anytime after Bridges Unit 1, Session 23
Shells & Coins 22 Anytime after Bridges Unit 1, Session 23
Pets & Coins 26 Anytime after Bridges Unit 2, Session 10
Fish Problems 28 Anytime after Bridges Unit 2, Session 10
Ant Story Problems 32 Anytime after Bridges Unit 2, Session 10
T-Shirts & Turtles 34 Anytime after Bridges Unit 2, Session 10
Dollars & Quarters 36 Anytime after Bridges Unit 2, Session 10
Flowers & Oranges 38 Anytime after Bridges Unit 3, Session 12
Ladybug Story Problems 40 Anytime after Bridges Unit 3, Session 12
Beads & Patterns 50 Anytime after Bridges Unit 3, Session 24
The Gym Teacher & Jason at the School Store 52 Anytime after Bridges Unit 3, Session 24
Baseball Cards & Teri at the School Store 54 Anytime after Bridges Unit 3, Session 24
Extra Facts 56 Anytime after Bridges Unit 3, Session 24
More Extra Facts Practice 62 Anytime after Bridges Unit 4, Session 12
The Shapes Shop 66 Anytime after Bridges Unit 4, Session 12
Sara’s Pockets 70 Anytime after Bridges Unit 4, Session 12
Bowls & Vans 74 Anytime after Bridges Unit 4, Session 12
Another Trip to the Shapes Shop 76 Anytime after Bridges Unit 4, Session 25
Books & Granola Bars 78 Anytime after Bridges Unit 4, Session 25
Ants & the Number Box 80 Anytime after Bridges Unit 4, Session 25
Apples & Snow People 82 Anytime after Bridges Unit 4, Session 25
Sharing Stories 84 Anytime after Bridges Unit 4, Session 25
Pet Shop Equations 86 Anytime after Bridges Unit 5, Session 17
Nuts & Carrots 88 Anytime after Bridges Unit 5, Session 17
Shopping & the Number Box 93 Anytime after Bridges Unit 5, Session 17
Shopping Problems 95 Anytime after Bridges Unit 5, Session 17
Coin Problems 97 Anytime after Bridges Unit 5, Session 17
Wheels 99 Anytime after Bridges Unit 5, Session 35
Pencil Puppy & Pal 101 Anytime after Bridges Unit 5, Session 35
More Facts Than You Need 103 Anytime after Bridges Unit 5, Session 35
Lines & Buttons 115 Anytime after Bridges Unit 6, Session 13
Cubes & Homework 117 Anytime after Bridges Unit 6, Session 13
Homework & 100 119 Anytime after Bridges Unit 6, Session 13
Make Your Own Problems 121 Anytime after Bridges Unit 6, Session 13
Grade 2 Practice Book Pages Grouped by Skill (cont.)
© The Math Learning Centerx nn Bridges in Mathematics
Practice Book
PROBLEM SOLVING (CONT.)Page Title Page Number Recommended Timing
Apples & Orange Slices 123 Anytime after Bridges Unit 7, Session 14
Crayons 131 Anytime after Bridges Unit 7, Session 14
More Crayon Problems 133 Anytime after Bridges Unit 7, Session 14
The Toy Store 135 Anytime after Bridges Unit 7, Session 25
More Toy Store Problems 137 Anytime after Bridges Unit 7, Session 25
Pizza Problems 139 Anytime after Bridges Unit 7, Session 25
More Number Patterns 144 Anytime after Bridges Unit 7, Session 25
Grade 2 Practice Book Pages Grouped by Skill (cont.)
Bridges in Mathematics nn xi© The Math Learning Center
Practice Book
ANSWER KEY
Grade 2 Practice Book Answer Keys
Use after Unit One, Session 12Page 1, Numbers & Words, 11–201
eleven 11 11twelve 12 12thirteen 13 13fourteen 14 14fifteen 15 15sixteen 16 16seventeen 17 17eighteen 18 18nineteen 19 19twenty 20 20
2 12, 14, 16
Page 2, Apples & Shapes1 9 apples; students’ work will vary.
2 (challenge) Students’ work will vary. Example:
5¢ 4¢
3¢
5¢4¢
3¢
5¢ + 5¢ = 10¢4¢ + 4¢ = 8¢10¢ + 8¢ = 18¢3¢ + 3¢ = 6¢18¢ + 6¢ = 24¢
Page 3, Adding & Subtracting 0’s, 1’s, & 2’s1 6, 5,
7, 3, 4,
5, 7, 6,
6, 4, 8
2 2, 1
5, 3, 0,
3, 5, 4,
6, 2, 4
Page 4, Dollars & Dimes1 4 dollars; students’ work will vary.
2 (challenge) 30 dimes; students’ work will vary.
Page 5, Adding Doubles & Neighbors1 0, 1, 2
3, 4, 5
6, 7, 8
9, 10, 20
2 a 5
b 9
c 8
d 7
e 10
f 5
g 9
h 4
Page 6, Fish & Farm Problems1 5 fish; students’ work will vary.
2 (challenge) 4 ducks and 2 sheep; students’ work
will vary.
Page 7, Number Lines & Counting Patterns1 No key necessary
2 a 15, 16, 18
b 30, 35, 40
c 14, 20, 24, 26
d 1, 7, 11, 13
Page 8, Baseball Cards & Darts1 7 baseball cards; students’ work will vary.
2 (challenge) She could get 3, 4, 5, 6, 7, 8, 9, 10, or 12
points. (There are 2 different ways she could get 6
points.) Students’ work will vary. Example:1 2 4 Total
333 3 pts
33 3 4 pts
33 3 6 pts
3 33 5 pts
3 33 9 pts
3 3 3 7 pts
333 6 pts
33 3 8 pts
3 33 10 pts
333 12 pts
© The Math Learning Centerxii nn Bridges in Mathematics
Practice Book
ANSWER KEY
Use after Unit One, Session 12 (cont.)Page 9, Thinking about 2’s1 2, 3, 5, 6, 7, 8, 10
11, 13, 14, 16, 17, 18, 19
21, 22, 23, 25, 26, 28, 29, 30
31, 32, 34, 35, 37, 39, 40
2 8, 12, 26, 14
20, 32, 16, 10
3 6, 10, 14, 8
26, 34, 22, 38
4 a 18 antennae
b 24 wings
c 14 ears
Page 10, Fish & Money Problems1 4 fish
2 (challenge) Students’ responses to 2d–g may be
entered in a different order than on the chart below.
Dimes Nickels Pennies
ex a 2 0 3
ex b 1 2 3
a 1 1
b 1 0
c 0 4
d 0
e 0
f 0
g 0
8
13
3
8
13
18
23
3
2
1
0
Page 11, Fact Families: 6’s1 a 2 + 4 = 6
b 5 + 1 = 6
c 2 + 2 + 2 = 6
2 a
b
c 3 6, 3, 0, 4
2, 5, 3, 1
1, 2, 0, 4
4 4, 1, 3, 2
3, 6, 4, 0
Page 12, Crayons & Coins1 12 crayons; students’ work will vary.
2 (challenge) 3 nickels and 2 dimes; students’ work
will vary.
Use after Unit One, Session 23Page 13, Dominoes & Counting Patterns1 3 + 4, 5 + 4, 5 + 5, 4 + 4
2 4, 3, 6 + 6, 4
3 Students’ responses will vary.
4 a 28, 30, 32
b 33, 35
c 13, 9
d 39, 37
Page 14, Fish & Pictures1 5 red fish; students’ work will vary.
2 (challenge) Students’ work will vary. Example:
5¢
4¢
3¢
5¢
3¢
5¢5¢ 3¢3¢
5¢ + 5¢ + 5¢ + 5¢ = 20¢3¢ + 3¢ + 3¢ + 3¢ = 12¢20¢ + 12¢ = 32¢32¢ + 4¢ = 36¢
Page 15, Numbers & CoinsNote: There is no match for 70¢.
ex
_____¢
1
_____¢
2
_____¢
3
_____¢
4
_____¢
5
_____¢
6
_____¢
10 ten20 twenty30 thirty40 forty50 fifty60 sixty70 seventy80 eighty
20
40
80
10
60
50
30
Bridges in Mathematics nn xiii© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit One, Session 23 (cont.)Page 16, Blocks & Apples1 13 blocks; students’ work will vary.
2 (challenge) $1.25; students’ work will vary.
Page 17, Fact Families: 7’s1 a 3 + 4 = 7
b 1 + 6 = 7
c 4 + 3 = 7
2 a
b
c 3 7, 4, 1, 5
3, 6, 4, 2
2, 3, 0, 6
4 4, 2, 1, 3
Page 18, Pennies, Bikes, & Trikes1 9 pennies; students’ work will vary.
2 (challenge) 2 bikes and 5 trikes; students’ work
will vary.
Page 19, Fingers & Toes1 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70
2 25, 40, 15, 5, 10, 50, 30
10, 25, 20, 0, 45, 15, 5
3 a 25 toes
b 30 fingers
c 20 toes
d 45 fingers
e (challenge) 9 feet
f (challenge) 7 hands
Page 20, Inchworm’s GardenFrom To How Many Inches?
1
2
3
4
5
6
3 inches
4 inches
2 inches
2 inches
3 inches
5 inches
Page 21, Thinking about 5’s1 1, 3, 4, 5, 7, 8, 9
12, 13, 15, 16, 17, 19, 20
21, 22, 24, 25, 26, 27, 28, 30
31, 32, 33, 34, 36, 38, 39, 40
41, 43, 44, 45, 46, 47, 48, 49
2 10, 20, 26, 39
3 15, 10, 30, 45
4 45, 50, 60, 70, 80, 85, 95
5 21, 26, 31, 36
Page 22, Shells & Coins1 7 shells; students’ work will vary.
2 (challenge) A dime, a nickel, and 3 pennies;
students’ work will vary.
Page 23, Fact Families: 8’s1 a 4 + 4 = 8
b 6 + 2 = 8
c 1 + 7 = 8
2 a
b
c 3 8, 5, 2, 6
4, 7, 5, 2
3, 4, 1, 2
4 5, 4, 1, 6
Page 24, Inchworm’s Paths1 Students’ responses will vary.
2 a 6 inches
b 7 inches
c 8 inches
3 Path A is the shortest.
4 Path C is the longest.
5 (challenge) Students’ work will vary. The shortest
path is around 51⁄2 inches, so responses of 5 or 6
inches are acceptable.
© The Math Learning Centerxiv nn Bridges in Mathematics
Practice Book
ANSWER KEY
Use after Unit Two, Session 10Page 25, Ella’s Piggy Bank1 dimes
2 nickels
3 two
4 87¢
5 (challenge) 13¢; students’ work will vary.
Page 26, Pets & Coins1 16 pets; students’ work will vary.
2 (challenge) 4 nickels and 2 dimes; students’ work
will vary.
Page 27, Fact Families: 9’s1 a 5 + 4 = 9
b 2 + 7 = 9
c 8 + 1 = 9
2 a
b
c 3 9, 5, 0, 7
5, 8, 3, 1
4, 6, 2, 3
4 5, 3, 2, 1
Page 28, Fish Problems1 7 are red; students’ work will vary.
2 (challenge) 8 yellow fish and 4 red fish; students’
work will vary.
Page 29, Cubes on a Line1
ex a b c
Tens Ones Tens Ones Tens Ones Tens Ones
d e f g
Tens Ones Tens Ones Tens Ones Tens Ones
3 0 1 5 2 0 5 5
6 0 4 5 6 5 3 5
2 15, 20, 30, 35, 45, 55, 60, 65
3 30, 15, 38, 46, 60, 20, 30
Page 30, Ant Paths1 a 12 cm
b 7 cm
c 6 cm
2 a Path A: 13 cm; Path B: 12 cm; Path C: 15 cm
b Students’ responses will vary. Example: I would
use Path B because it’s the shortest and I don’t
have to make any turns.
Page 31, Fact Families: 10’s1 a 7 + 3
b 4 + 6
c 2 + 8
2 a
b
c 3 10, 7, 1, 8
6, 9, 5, 2
5, 4, 3, 0
4 5, 3, 4, 9
Page 32, Ant Story Problems1 6 ants are working hard. Some more come to help.
Now there are 13 ants. How many ants came to help?
7 ants came to help; students’ work will vary.
2 There are 7 ants at the top of the tunnel. There are
4 ants in the middle chamber. There are 5 ants in
the lower chamber. How many ants in all?
There are 16 ants in all; students’ work will vary.
3 There are 6 ants. Each ant has 3 seeds. How many
seeds in all?
There are 18 seeds in all; students’ work will vary.
Bridges in Mathematics nn xv© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Two, Session 10 (cont.)Page 33, Triangle Fact Families
example
1
2
3
4
3 + 6 = 9
6 + 3 = 9
9 - 6 = 3
9 - 3 = 6
7
2 9
6
3 9
10
7 3
6
4 10
2
10 8
2 + 7 = 9
7 + 2 = 9
9 – 2 = 7
9 – 7 = 2
8 + 2 = 10
2 + 8 = 10
10 – 8 = 2
10 – 2 = 8
6 + 4 = 10
4 + 6 = 10
10 – 6 = 4
10 – 4 = 6
7 + 3 = 10
3 + 7 = 10
10 – 7 = 3
10 – 3 = 7
Page 34, T-Shirts & Turtles1 $9.00; students’ work will vary.
2 (challenge) 26 legs; students work will vary.
Page 35, All about Tens1 a 6 and 4 should be circled
b 7 and 3 should be circled
c 2 and 8 should be circled
2 a 8 + 2 = 10, 2 + 8 = 10, 10 – 8 = 2, 10 – 2 = 8
b 3 + 7 = 10, 7 + 3 = 10, 10 – 3 = 7, 10 – 7 = 3
c 1 + 9 = 10, 9 + 1 = 10, 10 – 1 = 9, 10 – 9 = 1
3 3, 5, 4, 7, 6, 1, 8
4 7, 5, 10, 1
3, 2, 4, 10
Page 36, Dollars & Quarters1 7 more dollars; students’ work will vary.
2 (challenge) 20 quarters; students’ work will vary.
Use after Unit Three, Session 12Page 37, Facts to 81 8, 7, 8, 3, 8, 6, 7
5, 8, 8, 8, 7, 8, 4
7, 8, 8, 6
2 2, 8, 4, 7, 4, 3, 2
6, 5, 0, 1, 5, 2, 3
1, 3, 3, 1
3 a 2 and 4 (1, 2, and 3 is another solution.)
b 3 and 4 (1, 2, and 4 is another solution.)
c 1, 3, and 4
d 2, 3, and 4
e 1, 2, 3, and 4
Page 38, Flowers & Oranges1 5 flowers; students’ work will vary.
2 (challenge) 32 orange slices; students work will vary.
Page 39, Telling Time on Two Kinds of Clocks1 a 3:00
b 9:30
c 7:00
d 4:30
2 a b
c d
Page 40, Ladybug Story Problems1 10 ladybugs were sitting on a leaf. A bird came
and chased 4 of them away. How many ladybugs
were left?
6 ladybugs were left; students’ work will vary.
2 There are 4 ladybugs on the leaf. How many legs
in all? (Ladybugs have 6 legs.)
There are 24 legs in all; students’ work will vary.
3 There were 5 ladybugs on a leaf. Some more lady-
bugs came. Then there were 12 ladybugs on the
leaf. How many ladybugs came?
7 ladybugs came; students’ work will vary.
© The Math Learning Centerxvi nn Bridges in Mathematics
Practice Book
ANSWER KEY
Use after Unit Three, Session 12 (cont.)Page 41, Facts to 91 9, 8, 9, 4, 9, 7, 8
9, 7, 9, 8, 9, 8, 8
7, 9, 8, 9
2 3, 9, 4, 8, 4, 4, 5
7, 5, 1, 0, 6, 2, 2
5, 3, 2, 1
3 a 2 and 4
b 3 and 4
c 8
d 2, 3, and 4
e 2 and 8
Page 42, Cookies & Apples1 8 cookies; students’ work will vary.
2 (challenge) 60 seeds; students’ work will vary.
Page 43, Number Patterns1 a–d
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80
81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100
2 14, 17, 40, 51, 62, 78
Page 44, Measuring Ladybug Paths1 a Bug A: 13 cm
b Bug B: 9 cm
c Bug C: 7 cm
d Bug D: 5 cm
2 Bug A
3 4 cm
4 8 cm
5 34 cm; students’ number sentences will vary.
6 Students’ paths and measurements may vary
slightly. 12 cm give or take a cm either way is
acceptable.
Page 45, Facts to 101 10, 9, 10, 5, 10, 8, 9
10, 7, 10, 9, 10, 8, 7
9, 10, 10
2 4, 10, 4, 9, 6, 5, 5
8, 4, 2, 3, 7, 0, 2
6, 4, 1, 3
3 a 3 and 3
b 2, 2, and 3
c 2, 3, and 3
d impossible
e 2, 2, 3, and 3
Page 46, Snacks1 15 granola bars; students’ work will vary.
2 (challenge) 65¢; students’ work will vary.
Page 47, Addition & Subtraction Tables1 a
+ 2 3 4 5 6 7
1 3
2 6
3 10
4
5 8 11
6
4 5 6 7 8
6 7 8 9 10 11
8 9 10 11 12 13
5 6 7 8 9
4 5
9 10
7 8 9
7 12
b
+ 3 4 5 6 7 8
3
4
5
6
7
8
6
9
13
11 14
7 8 9 10 11
9 10 11 12 13 14
11 12 13 14 15 16
8 9 10 11 12
7 8
12 13
10 11 12
10 15
2 a
0 1 2 3 4 5 –
1 0
1
2
3
4
5
0
1
3
0
1 2 3 4 5
0 1 2
0
0 1 2
0 2 3 4
1
Bridges in Mathematics nn xvii© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Three, Session 12 (cont.)Page 47, Addition & Subtraction Tables (cont.)2 b
6 7 8 9 10 11 –
1 0
1
2
3
4
5
6
7
9
6
7 8 9 10 11
6 7 8
6
6 7 8
6 8 9 10
7
Page 48, Comparing Numbers to 1001 47 < 51
2 18 < 23
3 36 > 29
4 71 > 17
5 34 = 34
Use after Unit Three, Session 24Page 49, Missing Numbers1 10, 8, 4
7, 8, 9
6, 1, 3
12, 16, 14
10, 8, 8
2 a 20, 30, 35
b 45, 55, 60
c 28, 38, 43
d 29, 44
e 20, 10, 5
f 17, 7, 2
3 a (challenge) 128, 118, 108, 103; Backward
b (challenge) 347, 362, 367, 377; Forward
c (challenge) 503, 508, 518, 523, 528; Forward
d (challenge) 252, 247, 242, 232, 222; Backward
Page 50, Beads & Patterns1 a 8 red beads; students’ work will vary.
b Students’ responses will vary. Example:
2 a (challenge) 25, 31, 37
b (challenge) 22, 27, 32, 42, 47
c (challenge) 10, 5, 0
d (challenge) 8, 4, 0
2 e (challenge) 16, 22, 37, 56
f (challenge) 16, 32, 64, 256, 512
Page 51, Doubles & Neighbors1
ex
7+ 7_____
a
7+ 8_____
b
6+ 6_____
c
6+ 7_____
d
8+ 8_____
e
9+ 8_____
f
9+ 9_____
g
10+ 9_____
14 15 12 13
16 17 18 19
2 5, 6, 4, 5, 3, 4, 2
7, 8, 6, 7, 8, 9, 9
Page 52, The Gym Teacher & Jason at the School Store1 a 7 more soccer balls; students’ work will vary.
b 23 soccer balls and footballs; students’ work
will vary.
2 (challenge) Students’ responses will vary. Examples:
• 2 markers and 1 eraser (25¢ + 25¢ + 10¢ = 60¢)
• 3 pencils (20¢ + 20¢ + 20¢ = 60¢)
• 1 marker, 1 pencil, and 1 folder (25¢ + 20¢ + 15¢
= 60¢)
• 1 tablet, 1 eraser, and 1 pencil (30¢ + 10¢ + 20¢
= 60¢)
Page 53, Fast Nines & Fast Tens1
ex
9+ 7_____
a
9+ 3_____
b
6+ 9_____
c
10+ 8_____
d
9+ 5_____
e
4+ 9_____
f
9+ 8_____
g
10+ 7_____
16 12 15 18
14 13 17 17
© The Math Learning Centerxviii nn Bridges in Mathematics
Practice Book
ANSWER KEY
Use after Unit Three, Session 24 (cont.)Page 53, Fast Nines & Fast Tens2 6, 7, 2, 3, 5, 6, 8
9, 4, 5, 3, 4, 7, 8
Page 54, Baseball Cards & Teri at the School Store1 Andre has 1 more baseball card than James.
Students’ work will vary.
2 (challenge) Students’ responses will vary. Examples:
• 2 markers and 1 pencil (25¢ + 25¢ + 20¢ = 70¢)
• 2 tablets and 1 eraser (30¢ + 30¢ + 10¢ = 70¢)
• 2 pencils and 1 tablet (20¢ + 20¢ + 30¢ = 70¢)
• 1 marker, 1 tablet and 1 folder (25¢ + 30¢ + 15¢
= 70¢)
• 3 folders and 1 marker (15¢ + 15¢ + 15¢ + 25¢
= 70¢)
• 3 pencils and 1 eraser (20¢ + 20¢ + 20¢ + 10¢ =
70¢)
Page 55, Scout Them Out Add & Subtract1 a +2 facts are underlined.
b +10 facts are not underlined.
8, 11, 10, 7, 9, 19, 6
14, 17, 10, 4, 13, 16, 13
2 a –2 facts are underlined.
b –10 facts are not underlined.
8, 4, 4, 7, 2, 9, 5
11, 7, 2, 6, 12, 8, 9
13, 10, 3, 6, 1, 10, 1
3 a T
b F
c T
d F
e T
f T
Page 56, Extra Facts1 Neena bought 7 red apples, 8 green apples, and 3
yellow apples. Neena is 12 years old. How many
apples did Neena buy?
18 apples; students’ work will vary.
2 Pedro had 15 dollars. He spent 9 dollars on a book.
His friend had 12 dollars. How much money did
Pedro have left?
6 dollars; students’ work will vary.
3 The gym teacher had 16 soccer balls. She had
14 footballs. She gave 8 of the soccer balls to the
playground helper. How many soccer balls did she
have left?
8 soccer balls; students’ work will vary.
4 (challenge) The ladybug ate 28 aphids in the morn-
ing. Then she took a nap on a leaf for 3 hours. She
ate 34 aphids in the afternoon. How many aphids
did she eat in all?
62 aphids; students’ work will vary.
Page 57, Make Ten Facts1 a Make 10 facts are underlined.
b Other facts are not underlined.
10, 7, 11, 10, 7, 10, 8
9, 10, 10, 9, 9, 8, 10
7, 10, 10, 10, 10, 4, 9
2 Students’ work will vary.
a 18
b 17
c 20
d 16
e 26
f 20
Page 58, A.M. or P.M.?1 a 6:00 p.m.
b 7:00 a.m.
c 5:00 p.m.
d 4:00 p.m.
e 8:30 p.m.
f 3:30 p.m.
2 Students’ responses will vary.
Page 59, More Scout Them Outs1 a Doubles are underlined.
b Neighbors are not underlined.
4, 5, 10, 11, 7, 8, 12
11, 13, 14, 15, 18, 19, 22
6, 7, 16, 24, 25, 26, 27
2 a Half Facts are underlined.
b Take away Tens are not underlined.
5, 5, 3, 9, 3, 7, 2
8, 10, 6, 20, 30, 50, 40
Bridges in Mathematics nn xix© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Three, Session 24 (cont.)Page 59, More Scout Them Outs (cont.)3 a T
b T
c F
d F
e F
f T
Page 60, Numbers & Words1 No answer key necessary.
2 a Sixty-nine
b Forty-seven
c One hundred seventy-six
Use after Unit Four, Session 12Page 61, Mystery Shapes1 Rectangular prism
2 Sphere
3 Pyramid
4 Cylinder
5 Triangular prism
6 Cube
Page 62, More Extra Facts Practice1 Nick has 3 cats. He had 12 fish. He gave 4 of the
fish to his friend. How many fish does he have left?
He has 8 fish left. Students’ work will vary.
2 Lin’s big sister is 15. She listened to 8 songs on her
CD player in the morning. She listened to 9 more
songs that night. How many songs did she listen to
in all?
Lin’s big sister listened to 17 songs in all. Students’
work will vary.
3 Amber made 9 cupcakes. Then she made 12 more
cupcakes. It took 2 cups of sugar to make the frost-
ing. How many cupcakes did she make in all?
Amber made 21 cupcakes in all. Students’ work
will vary.
4 (challenge) The Green Dragon had 250 gold pieces.
He is 18 feet tall. He is mad because the trolls took
60 of his gold pieces. How many gold pieces does
he have left?
The Green Dragon has 190 gold pieces left.
Students’ work will vary.
Page 63, More Make Ten Facts1 a Make 10 facts are underlined.
b Other facts are not underlined.
10, 12, 10, 14, 10, 10, 9
13, 10, 16, 15, 10, 18, 10
20, 10, 10, 5, 7, 10, 19
2 Students’ work will vary.
a 20
b 14
c 29
d 22
3 4, 2, 5, 7
1, 9, 6, 8
Page 64, Using Make Ten Facts to Help Subtract
a 13 – 7 = ______
13107
b 15 – 7 = ______
15107
c 12 – 8 = ______
12108
6
8
4
+3 +3
+3+5
+2 +2
Page 65, Symmetry1 a & b
square circle scalene triangle rectangle
pentagon ellipse right triangle trapezoid
2
example
An equilateral triangle
has ______ lines of symmetry.
a
An isosceles trapezoid
has ______ lines of symmetry.
b
A rhombus
has ______ lines of symmetry.
c
A hexagon
has ______ lines of symmetry.
3 1
2 6
© The Math Learning Centerxx nn Bridges in Mathematics
Practice Book
ANSWER KEY
Use after Unit Four, Session 12 (cont.)Page 66, The Shapes Shop1 a 10¢
b 4¢
c 5¢
2 74¢; students’ work will vary.
3 Students’ responses will vary.
Page 67, Thinking about Place Value1 No answer key necessary
2 a Two hundred eight
b One hundred fourteen
c Two hundred sixteen
Page 68, Two Different Ways to Write Money Amounts1 a 30¢ or $0.30
b 60¢ or $0.60
c 71¢ or $0.71
2 a Dime, 10¢ or $0.10, students’ responses will vary
b Quarter, 25¢ or $0.25, students’ responses will vary
Page 69, Subtraction Strategies1 a Subtract 2’s are underlined
b Subtract Halves are circled
c Takeway 10’s are in bold font
d Runaway 1’s are in italic
e Any facts that don’t fit one of the four types
listed in a–d are shown in regular font.
13, 8, 10, 8, 7, 6, 10
10, 9, 7, 9, 8, 10, 17
9, 5, 14, 9, 11, 10, 6
7, 4, 2, 6, 6, 3, 10
60, 73, 70, 80, 27, 90, 40
Page 70, Sara’s Pockets
1 2 nickels and 2 dimes; students’ work will vary.
2 1 dime, 2 nickels, and 4 pennies; students work
will vary.
Page 71, Halves1 a First choice
b Second choice
c Third choice
2 5, 8, 10, 6, 7, 9, 3
20, 30, 12, 15, 40, 50, 11
200, 300, 100, 60, 90, 80, 70
Page 72, Comparing Numbers to 3001 a 244 > 229
b 183 < 209
2 67, 107, 113, 204, 261
Use after Unit Four, Session 25Page 73, Fact Family Triangles
example
1
2
3
4
12
5 7
11
6 5
13
4 9
14
6 8
15
9 6
4 + 9 = 1313 – 4 = 9
9 + 4 = 1313 – 9 = 4
9 + 6 = 15
15 – 9 = 6
6 + 9 = 15
15 – 6 = 9
5 + 7 = 12
12 – 5 = 7
7 + 5 = 12
12 – 7 = 5
6 + 5 = 11
11 – 6 = 5
5 + 6 = 11
11 – 5 = 6
6 + 8 = 14
14 – 6 = 8
8 + 6 = 14
14 – 8 = 6
Page 74, Bowls & Vans1 4 little fishbowls; students’ work will vary.
2 (challenge) 6 vans; students’ work will vary.
Page 75, Puzzles about Ten & More1 a 10
b 4
c 8
d 3
e 6
f 3
g 2
h 3
2 10, 3, 5
10, 7, 6
5, 4, 7
3 (challenge) 40, 5, 127
Bridges in Mathematics nn xxi© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Four, Session 25 (cont.)Page 76, Another Trip to the Shapes Shop1 The shape picture costs 55¢. Any coin combina-
tion worth 55¢ is acceptable. Examples: 2 quarters
and 1 nickel; 1 quarter, two dimes, two nickels; or 2
quarters and 5 pennies.
2 Students’ responses will vary.
Page 77, Make Tens to Subtract1
a 14 – 7 = ______
7 10 14
b 16 – 9 = ______
9 10 16
c 13 – 6 = ______
6 10 13
d 14 – 8 = ______
8 10 14
+3 +4
+1+6
+4 +3
+2 +4
7
7
7
6
Page 78, Books & Granola Bars1 15 books; students’ work will vary.
2 a (challenge) 50¢; students’ work will vary.
b (challenge) $1.00; students’ work will vary.
c (challenge) $2.50; students’ work will vary.
Page 79, More Fact Family Triangles
example
1
2
3
4
14
9 5
13
6 7
11
7 4
12
9 3
13
8 5
4 + 7 = 1111 – 4 = 7
7 + 4 = 1111 – 7 = 4
8 + 5 = 13
13 – 8 = 5
5 + 8 = 13
13 – 5 = 8
9 + 3 = 12
12 – 9 = 3
3 + 9 = 12
12 – 3 = 9
9 + 5 = 14
14 – 9 = 5
5 + 9 = 14
14 – 5 = 9
6 + 7 = 13
13 – 6 = 7
7 + 6 = 13
13 – 6 = 7
Page 80, Ants & the Number Box1 a 20; students’ work will vary.
b 10; students’ work will vary.
2 a (challenge) 4 and 17 or 18 and 3 or 5 and 16 or
11 and 10
b (challenge) 18 and 11 or 23 and 6 or 12 and 17
c (challenge) 16 and 6
d (challenge) 17 and 3 or 18 and 4
e (challenge) 3, 4, 5, and 6
Page 81, Adding & Subtracting Tens1 60, 48, 55, 76, 89, 63, 36
29, 31, 91, 47, 50, 82, 37
2 65, 45, 32, 89, 77, 8, 11
37, 4, 41, 29, 18, 67, 84
Page 82, Apples & Snow People1 35 seeds; students’ work will vary.
2 (challenge) 84 stones; students’ work will vary.
Page 83, Half & Half1
a b
c d
2
a
b
c
3 Students’ work will vary. Examples:
a b
c d
Page 84, Sharing Stories1 8 shells; students’ work will vary.
2 (challenge) 7 marbles; students’ work will vary.
© The Math Learning Centerxxii nn Bridges in Mathematics
Practice Book
Use after Unit Five, Session 17Page 85, Missing Numbers1
example12
5 7
a
4 8
b15
9
c15
7
5 + 7 = 127 + 5 = 1212 – 5 = 712 – 7 = 5
12
6
8
4 + 8 = 128 + 4 = 1212 – 4 = 812 – 8 = 4
9 + 6 = 156 + 9 = 1515 – 9 = 615 – 6 = 9
8 + 7 = 157 + 8 = 1515 – 8 = 715 – 7 = 8
2 16, 9, 6
5, 5, 8
3 (challenge) 81, 19, 38
Page 86, Pet Shop Equations1
a The pet shop owner had 14 hamsters. She sold 5 of them on Monday and 3 of them on Tuesday. How many hamsters does she have left?
b There were 12 puppies in the pen. The pet shop owner sold some of them. Now there are 7 puppies in the pen. How many puppies did she sell?
c The pet shop owner got 9 rabbits yesterday. A family came in and bought 2 of them. Then the shop owner got 8 more rabbits. How many rabbits does she have now?
d There were 16 fish in the big tank. The shop own-er moved some of them. Now there are only 9 fish in the big tank. How many did the shop owner move?
e The shop owner had 6 kittens. Then she got some more kittens. Now she has 13 kittens. How many kittens did she get?
9 – 2 + 8 = ______
14 – 5 – 3 = ______
6 + ______ = 13
12 – ______ = 7
16 – ______ = 9
15
6
7
5
7
2 (challenge)
11, 15
54, 16
25, 300
324, 23
53, 474
Page 87, Tens & Ones1 2
example 10’s 1’s
3 6
Equation
30 + 6 = 36
a 10’s 1’s
Equation
b 10’s 1’s
Equation
c 10’s 1’s
Equation
d 10’s 1’s
Equation
5 2
50 + 2 = 52
7 1
70 + 1 = 71
7 0
70 + 0 = 70
4 7
40 + 7 = 47
example Dimes Pennies
2 1
Equation
20¢ + 1 ¢ = 21¢
a Dimes Pennies
Equation
b Dimes Pennies
Equation
c Dimes Pennies
Equation
d Dimes Pennies
Equation
3 2
30¢ + 2¢ = 32¢
5 1
50¢ + 1¢ = 51¢
7 5
70¢ + 5¢ = 75¢
1 5
10¢ + 5¢ = 15¢
Page 88, Nuts & Carrots1 37 nuts; students’ work will vary.
2 (challenge) 21 carrots; students’ work will vary.
Page 89, Different Ways to Look at 3001 a 3 hundreds
b 30 tens
c 300 ones
2 30 groups of 10 labeled 10, 20, 30, 40, 50, 60, 70, 80,
90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190,
200, 210, 220, 230, 240, 250, 260, 270, 280, 290, and
300. Students’ work will vary.
Page 90, Different Ways to Look at the Same Number1 3 hundreds, 31 tens, 310 ones
2 3 hundreds, 35 tens, 350 ones
3 2 hundreds, 23 tens, 230 ones
4 2 hundreds, 29 tens, 290 ones
Page 91, Time & Money Problems1 a 2 quarters, 1 nickel, and 1 penny
b 2 quarters, 1 dime, 1 nickel, and 1 penny
c 1 quarter and 4 pennies
d (challenge) 5 quarters, 1 nickel, and 4 pennies
ANSWER KEY
Bridges in Mathematics nn xxiii© The Math Learning Center
Practice Book
Use after Unit Five, Session 17 (cont.)Page 91, Time & Money Problems (cont.)2 a 6:15
b 3:30
c 2:15
3 a b
c
Page 92, Hundreds, Tens & Ones1 a 2 hundreds, 24 tens, 247 ones
b 3 hundreds, 31 tens, 318 ones
2
a 5 hundreds + 2 tens + 9 ones
b 42 tens
c 30 tens + 9 ones
d 3 hundreds + 49 ones
420 ones
52 tens + 9 ones
2 hundreds + 14 tens + 9 ones
1 hundred + 20 tens + 9 ones
Page 93, Shopping & the Number Box1 10¢; students’ work will vary.
2 a (challenge) 32 and 8
b (challenge) 15 and 3
c (challenge) 10 and 8
d (challenge) 20 and 32 or 15 and 3 or 20 and 8
e (challenge) 20, 24, and 32
f (challenge) 76; students’ work will vary.
Page 94, Base Ten Addition1 38
2 42
3 51
4 51
5 39
6 53
7 41
8 54
9 39
10 32
Page 95, Shopping Problems1 72¢, students’ work will vary.
2 (challenge) 4 apples, students’ work will vary.
Page 96, Base Ten Subtraction1 16
2 20
3 17
4 8
5 25
6 15
7 14
8 12
9 15
Page 97, Coin Problems1 63¢; students’ work will vary.
2 (challenge) 14¢ each; students’ work will vary.
Use after Unit Five, Session 35Page 98, Adding & Subtracting Tens & Nines1 50, 49, 65, 64, 88, 87, 87
26, 25, 82, 81, 54, 53, 76
2 20, 21, 36, 37, 71, 72, 23
25, 26, 19, 20, 65, 66, 28
3 a 4:15
b 1:45
c 7:30
d 10:15
Page 99, Wheels1 44 wheels; students’ work will vary.
2 (challenge) first solution: 6 wagons and 1 trike,
second solution: 3 wagons and 5 trikes
Page 100, Place Value Practice1 a 32 = 30 + 2
b 75 = 70 + 5
c 18 = 10 + 8
d 74 = 70 + 4
e 28 = 20 + 8
f 93 = 90 + 3
g 45 = 40 + 5
h 67 = 60 + 7
ANSWER KEY
© The Math Learning Centerxxiv nn Bridges in Mathematics
Practice Book
Use after Unit Five, Session 35 (cont.)Page 100, Place Value Practice (cont.)2 68, 23, 59
85, 57, 28
74, 63, 69
49, 76, 37, 54, 91, 55, 82
3 a Hundreds place
b Tens place
c Ones place
d Hundreds place
Page 101, Pencil Puppy & Pal1 a 64
b 73
2 a 35
b 47
3 72 pencils; students’ work will vary.
Page 102, 2-Digit Addition1 a 62
b 53
2 a 40 + 30 = 70, 8 + 4 = 12, 70 + 12 = 82
b 50 + 20 = 70, 8 + 8 = 16, 70 + 16 = 86
c 20 + 60 = 80, 5 + 9 = 14, 80 + 14 =94
d 30 + 50 = 80, 4 + 9 = 13, 80 + 13 = 93
e 40 + 40 = 80, 5 + 6 = 11, 80 + 11 = 91
Page 103, More Facts Than You Need1 Akiko has 27 marbles. Sara has 53 marbles. Sam
has 24 marbles. How many marbles do Sara and
Sam have in all?
77 marbles; students’ work will vary.
2 Jenny has 12 toy people. She is building a house
for them. She used 12 blocks for the front gate,
and 48 blocks for the rest of the house. How many
blocks did Jenny use in all?
60 blocks; students’ work will vary.
3 Juan had 56 crayons. He gave 23 of his crayons to
his friend. Juan also gave his friend 15 marking
pens. How many crayons does Juan have left?
33 crayons; students’ work will vary.
4 (challenge) The Toy Factory made 90 robots on
Tuesday. 23 people work at the factory. They sold
54 of the robots on Wednesday. How many robots
did they have left?
36 robots; students’ work will vary.
Page 104, Numbers & Clocks1 a 300 + 40 + 2
b 200 + 70 + 3
c 200 + 20 + 9
d 400 + 60 + 1
e 600 + 10 + 8
f 157 = 100 + 50 + 7
g 999 = 900 + 90 + 9
h 835 = 800 + 30 + 5
2 138, 229, 273, 342, 461, 618
3 a b
c d
Page 105, Sam’s Hot Dog Stand1 a Saturday
b Thursday
c 288 hotdogs
2 a 325 > 108
b 108 < 119
c 234 > 164
d 163 < 345
e 325 > 234
3 108, 119, 125, 163, 234, 325, 345
4 (challenge) 1,419 hotdogs; students’ work will vary.
Page 106, 2-Digit Subtraction1 c Note students’ work on number line will vary.
See example below.
a 45 – 17
2017 40 45
___________________ so 45 – 17 = ______
b 54 – 25
25 30 50 54
___________________ so 54 – 25 = ______
c 57 – 18
18 57
___________________ so 57 – 18 = ______
3 + 20 + 5 = 28 28
+20+3 +5
+20+5 +4
5 + 20 + 4 = 29 29
20 50
2 + 30 + 7 = 39 39
+30+2 +7
ANSWER KEY
Bridges in Mathematics nn xxv© The Math Learning Center
Practice Book
Use after Unit Five, Session 35 (cont.)Page 107, The Pet Graph1 a Dogs
b 7 kids
c 6 kids
d 5 + 2 + 8 + 12 = 27 kids
2 a 9 kids; students’ work will vary.
b 17 kids; students’ work will vary.
Page 108, More 2-Digit Addition1 a 41
b 48
2 78, 47, 46, 33
3 a 70 + 12 = 82
b 60 + 12 = 72
c 30 + 8 = 38
d 80 + 10 = 90
e 80 + 11 = 91
Page 109, More 2-Digit Subtraction2 & 3 Note students’ work on number line will vary.
Example shown below.
1 60 – 32
32 40 60
___________________ so 60 – 32 = ______
2 54 – 27
27 54
___________________ so 54 – 27 = ______
3 71 – 26
26 71
___________________ so 71 – 26 = ______
288 + 20 = 28
+8 +20
30
30
273 + 24 = 27
454 + 41 = 45
+3+24
+4+41
Use after Unit Six, Session 13Page 110, Which Makes the Most Sense?1 a 60
b 50
c 90 Students’ explanations will vary. Example:
40 + 30 is 70 and 9 + 9 is 18. That’s almost up to 90.
d 60 Students’ explanations will vary. Example:
30 + 20 is 50 and 7 + 4 = 11. That’s just one
more than 60 if you add them up.
2 a 15
b 30
c 25 Students’ explanations will vary. Example:
50 – 24 is almost like 50 – 25, and the answer to
that is 25.
d 30 Students’ explanations will vary. Example:
60 – 29 is almost like 60 – 30, and the answer to
that is 30.
Page 111, Estimation Problems1 $17.00
2 $20.00
3 30 squares
4 35 books
5 300 cans
Page 112, Adding & Subtracting Practice1 15, 18, 17, 16, 16, 19, 13
12, 17, 20, 17, 14, 14, 11
29, 52, 38, 75, 47, 98, 94
49, 52, 88, 82, 79, 93, 85
2 6, 7, 3, 4, 8, 9, 10
40, 20, 20, 20, 40, 50, 20
16, 25, 58, 34, 15, 18, 38
Page 113, Grandma’s Button Box1 Students’ graph titles and graph marking methods
will vary. Example:
Red
Gol
d
Whi
te
Blue
Purp
le
Blac
k
Button Color
Num
ber
of B
utto
ns
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Title _________________________________Grandma’s Button Box
2 102 buttons; students’ work will vary.
ANSWER KEY
© The Math Learning Centerxxvi nn Bridges in Mathematics
Practice Book
Use after Unit Six, Session 13 (cont.)Page 114, 2-Digit Addition Practice1 a 42
b 60
2 29, 49, 48, 37
3 a 50 + 13 = 63
b 80 + 11 = 91
c 60 + 13 = 73
d 90 + 7 = 97
e 50 + 17 = 67
Page 115, Lines & Buttons1 a Students’ work will vary.
b 12 children, including Tami
c Students’ responses will vary.
2 a (challenge) Students’ work will vary.
b (challenge) 3 of the 8 buttons have 4 holes.
5 of the 8 buttons have 2 holes.
c (challenge) Students’ responses will vary.
Page 116, Time & Money1 a 4:25
b 1:55
c 7:45
d 5:05
2 a 76¢
b $1.00
3 a 2 quarters, 50¢, $0.50, half a dollar
b $0.25, 25¢
Page 117, Cubes & Homework1 a Students’ work will vary.
b There are 7 cubes in one stack and 3 cubes in
the other stack.
c Students’ responses will vary.
2 a (challenge) Students’ work will vary.
b (challenge) 45 marbles
c (challenge) Students’ responses will vary.
Page 118, More Place Value Practice1 a 50, 60, 70, 90, 120, 130
b 250, 240, 220, 210, 190, 180
c 233, 243, 263, 273, 283, 303
d 527, 517, 497, 477
2 a 400, 500, 600, 800, 900
b 650, 550, 450, 250, 150
2 c 503, 603, 703, 903
d 614, 514, 314, 214, 114
3 472, 628
855, 113
259, 381, 742, 260, 444, 117, 999
4 a Hundreds place
b Ones place
c Tens plans
Page 119, Homework & 1001 Students’ responses will vary. Examples: 12 + 12
= 24, How many eggs in 2 dozen? How many dough-
nuts in 2 dozen? 30 – 6 = 24, 20 + 4 = 24
2 (challenge) Students’ responses will vary. Exam-
ples: 90 +30 = 120, 80 + 40 = 120, 130 – 10 = 120,
140 – 20 = 120, 2 × 60 = 120, 3 × 40 = 120, 240 ÷ 2
= 120, 360 ÷ 3 = 120, 50 + 50 + (24 – 4) = 120
Page 120, 2-Digit Subtraction Practice1 27; students’ work will vary.
2 34; students’ work will vary.
3 44; students’ work will vary.
Page 121, Make Your Own Problems1 85; students’ work will vary.
2 57; students’ work will vary.
3 46; students’ work will vary.
4 29; students’ work will vary.
5 27; students’ work will vary.
Use after Unit Seven, Session 14Page 122, Solving Equations1 a 8
b 8
c 6
d 9
e 7
f 3
g 3
2 90, 30, 20
60, 25, 45
40, 50, 60
55, 20, 50
3 (challenge) 244, 143, 50
ANSWER KEY
Bridges in Mathematics nn xxvii© The Math Learning Center
Practice Book
Use after Unit Seven, Session 14 (cont.)Page 123, Apples & Orange Slices1 48 apples; students’ work will vary.
2 (challenge) 144 seeds; students’ work will vary.
Page 124, The Second Graders Clean Their Desks1 Students’ graph titles and methods of marking the
graph will vary. Example:
Penc
ils
Scis
sors
Glu
e St
icks
Eras
ers
Boo
ks
Extra Things
45
42
39
36
33
30
27
24
21
18
15
12
9
6
3
0
Title _________________________________
Num
ber
of
Extr
a Th
ings
Extra Things in Kids’ Desks
2 29 pencils; students’ work will vary.
3 (challenge) 98 extra things; students’ work will vary.
Page 125, Measuring Problems1 a Students’ responses will vary.
b 13 cm, 15 cm
c Line A
d 2 cm; students’ work will vary.
2 a Students’ responses will vary.
b 20 cm, 25 cm
c Crooked Line D
d 5 cm; students’ work will vary.
Page 126, Fractions1 a 1⁄2
b 1⁄4
c 1⁄3
d 3⁄4
2 Student work will vary. Examples:
a
24
b
34
c
16
d
36
Page 127, The Army Ants Measure Up1 Students’ responses will vary.
2 15 army ants
3 Students’ responses will vary.
Page 128, Place Value Review1 a hundreds, 700
b ones, 3
c tens, 50
d hundreds, 600
2 a 85 > 58
b 327 < 372
c 106 < 610
d 218 = 218
e 735 > 573
f 204 < 240
g 483 > 438
3 a–g Students’ responses will vary.
Page 129, More about Meters1 Students’ responses will vary.
2 Students’ responses will vary.
3 10 seconds
4 Students’ responses will vary. Examples: snail, slug
5 Meters
6 Centimeters
7 (challenge) Shorter by 32 centimeters; students’
work will vary.
Page 130, Adding & Subtracting1 86, 73, 68, 88, 77, 68, 76
378, 126, 894, 375, 390, 457, 150
2 a 91; students’ work will vary.
b 262; students’ work will vary.
ANSWER KEY
© The Math Learning Centerxxviii nn Bridges in Mathematics
Practice Book
Use after Unit Seven, Session 14 (cont.)Page 130, Adding & Subtracting (cont.)3 80, 30, 41, 51, 20, 30, 25
4 25; students’ work will vary.
Page 131, Crayons1 21¢; students’ work will vary.
2 88 crayons; students’ work will vary.
3 No; students’ responses will vary. Example: 99¢ is
only 1 penny away from $1.00, so $1.50 + 99¢ would
be way more than $2.00.
Page 132, Pedro’s Birthday1 Tuesday
2 April 3; students’ explanations will vary.
3 21 days in three weeks; students’ work will vary.
4 72 hours in three days; students’ work will vary.
5 a 3 hours
b 180 minutes; students’ work will vary.
Page 133, More Crayon Problems1 42¢; students’ work will vary.
2 (challenge) $8.60; students’ work will vary.
Use after Unit Seven, Session 25Page 134, Digits & Number Riddles1
a 289
____ is in the tens place.
____ is in the ones place.
____ is in the hundreds place.
b 945
____ is in the ones place.
____ is in the hundreds place.
____ is in the tens place.
c 316
____ is in the tens place.
____ is in the hundreds place.
____ is in the ones place.
d 405
____ is in the ones place.
____ is in the tens place.
____ is in the hundreds place.
e 5,687
____ is in the tens place.
____ is in the ones place.
____ is in the thousands place.
____ is in the hundreds place.
f 4,301
____ is in the ones place.
____ is in the hundreds place.
____ is in the tens place.
____ is in the thousands place.
2
8
9
6
1
3
5
8
7
6
0
1
3
4
4
5
0
4
5
9
2 a (challenge) 147
b (challenge) 3,702 or 3,700
Page 135, The Toy Store1 $37.00; students’ work will vary.
2 (challenge) Skates, puppet, and soccer ball;
students’ work will vary.
Page 136, Enough Time in the Day1
a b c d
2 15 minutes
3 4 hours
4 240 minutes; students’ work will vary.
Page 137, More Toy Store Problems1 $7.98; students’ work will vary.
2 (challenge) 5 kids; students’ work will vary.
Page 138, More Fractions1 a 2⁄4
b 2⁄3
c 3⁄4
d 4⁄6
2 a 3⁄6 (1⁄2 also acceptable) students’ work will vary.
b 1⁄4; students’ work will vary.
Page 139, Pizza Problems1 David
2 (challenge) David
Page 140, Reading & Writing Numbers1 a 286 = 200 + 80 + 6
b 753 = 700 + 50 + 3
c 621 = 600 + 20 + 1
d 347 = 300 + 40 + 7
e 917 = 900 + 10 + 7
f 160 = 100 + 60
g 804 = 800 + 4
2 528, 222, 171
719, 847, 503
291, 319, 226, 452, 999, 341, 418
3 a 306
b 217
ANSWER KEY
Bridges in Mathematics nn xxix© The Math Learning Center
Practice Book
Use after Unit Seven, Session 25 (cont.)Page 141, How Long Is a Shark?1 Thresher shark
2 Night Shark
3 a >
b <
4 154 cm, 174 cm, 204 cm, 247 cm, 312 cm, 373 cm
5 126 cm; students’ work will vary.
Page 142, Addition & Subtraction Practice1 43, 58, 88, 66, 100, 68, 70
299, 360, 597, 240, 350, 351, 500
2 a 94; students’ work will vary.
b 270; students’ work will vary.
3 40, 40, 44, 25, 30, 15, 25
4 Students’ responses and work will vary. Answers
to the 4 problems are shown below.
20, 25, 34, 24
Page 143, Maria Jose’s DayEvent Time A.M. or P.M. Clock
a Breakfast
7:05A.M.
P.M.
b Arrive at School
8:15A.M.
P.M.
c Lunch
11:55A.M.
P.M.
d Soccer Practice
4:10A.M.
P.M.
e Dinner
6:30A.M.
P.M.
Page 144, More Number Patterns1 a 45, 65, 85, 95, 105
b 24, 30, 42, 48, 54, 72
c 120, 125, 135, 140, 150
d 313, 513, 713, 813, 913
2Feet 1 2 3 4 5 6 7 8 9
Inches 12 24 36 48 60 72 84 96 108
3 (challenge) 9 yards; students’ work will vary.
Page 145, Breanna’s Pockets1 Pocket B has 59¢
Pocket C has 83¢
Pocket D has 56¢
2 Pocket C
3 Pocket D
4 Student responses will vary. Example: No, because
59 and 56 is just a little more than a dollar. 77 and 83
are each both less than a dollar. I don’t think it will
add up to $3.00.
5 $2.75; students’ work will vary.
6 (challenge) $1.88; students’ work will vary.
ANSWER KEY
Bridges in Mathematics nn 1© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges,Unit 1, Session 12.
eleven 1111twelve 1212thirteen 1313fourteen 1414fifteen 1515sixteen 1616seventeen1717eighteen 1818nineteen 1919twenty 2020
2Fillinthemissingnumbersonthelinebelow.
11 13 15 17
Numbers&Words,11–20
1Tracethewordsandnumbers.Thendrawalinetothematchingset.
© The Math Learning Center2 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges,Unit 1, Session 12.
Apples&Shapes
1Therewere3applesonthetable.Janput6moreapplesonthetable.Howmanyappleswereonthetableinall?Showyourwork.
Therewere______applesonthetableinall.
CHALLENGE
2Makeapicturethatisworth24¢.Youcanonlyusetheseshapes.Labelyourpicture.Provethatitisworth24¢.
Square–5¢ Circle–4¢ Triangle–3¢
Bridges in Mathematics nn 3© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
Adding&Subtracting0’s,1’s,&2’s
1Add.Countthedotstohelp.
5+0____
4+2____
3+2____
6+1____
3+0____
2+2____
1+4____
2+5____
1+5____
0+6____
3+1____
6+2____
2Subtract.Crossoutthedotstohelp.5–2____
4–2____
3–2____
6–1____
3–0____
2–2____
4–1____
5–0____
5–1____
6–0____
3–1____
6–2____
5
3
© The Math Learning Center4 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
Dollars&Dimes
1Marcohas6dollars.Howmanymoredollarsdoesheneedtohave10dollarsaltogether?Showyourwork.
Marconeeds_________dollarstohave10dollarsaltogether.
CHALLENGE
2Katyhas5dollars.Howmanymoredimesdoessheneedtohave8dollarsaltogether?Showyourwork.
Katyneeds_______moredimestohave8dollarsaltogether.
Bridges in Mathematics nn 5© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
AddingDoubles&Neighbors
1Add.
0+0____
0+1____
1+1____
1+2____
2+2____
2+3____
3+3____
3+4____
4+4____
4+5____
5+5____
10+10____
2Findthesums.Makedotsintheframestoshowtheanswers.
ex4+3=_____ a3+2=_____ b5+4=_____
c4+4=_____ d4+3=_____ e5+5=_____
f2+3=_____ g4+5=_____ h2+2=_____
7
© The Math Learning Center6 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
Fish&FarmProblems
1Gushadsomefish.Hegot6morefishatthepetstore.Nowhehas11fish.HowmanyfishdidGushavetostartwith?Showyourwork.
Gusstartedoutwith___________fish.
CHALLENGE
2Mrs.Joneshasducksandsheeponherfarm.Theanimalshaveatotalof6headsand16legs.HowmanyducksdoesMrs.Joneshave?HowmanysheepdoesMrs.Joneshave?Showyourwork.
Mrs.Joneshas_____________ducksand___________sheep.
Bridges in Mathematics nn 7© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NumberLines&CountingPatterns
1Practicewritingeachnumeraltwice.
10 11 12 13 14 15 16 17 18 19
2Fillinthemissingnumbersoneachnumberlinebelow.
a
1413 17 19
b
2015 25 45
c
16 18 22
d
3 5 9
© The Math Learning Center8 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
BaseballCards &Darts
1Jameshad13baseballcards.Hegave6tohisbrother.HowmanybaseballcardsdoesJameshavenow?Showyourwork.
Jamesnowhas____________baseballcards.
CHALLENGE
2Maithrew3dartsattheboard.Allthreeofthemstuckintheboard.Whatareallthedifferentscoresshecouldget?Showyourwork.
4 2 1
Bridges in Mathematics nn 9© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
Thinkingabout2’s
1Fillinthemissingnumbers.Thencolorinthecount-by-twosnumbers,startingwith2(2,4,6,8,andsoon).
1 4 9
12 15 20
24 27
33 36 38
2Add:
6+2=_____ 2+10=_____ 24+2=_____ 2+12=_____
18+2=_____ 30+2=_____ 14+2=_____ 8+2=_____
3Subtract:
8–2=_____ 12–2=_____ 16–2=_____ 10–2=_____
28–2=_____ 36–2=_____ 24–2=_____ 40–2=_____
4Fillintheblanks.
a 9 leaf cutter antsHow many antennae in all?
__________
b12butterfliesHowmanywingsinall?
__________
c7elephantsHowmanyearsinall?
__________
© The Math Learning Center10 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
Fish&MoneyProblems
1Therewere13fishinthetank.Thecatatesome.Nowthereareonly9fishinthetank.Howmanydidthecateat?Showyourwork.
Thecatate____________fish.
CHALLENGE
2Finddifferentwaystomake23¢.Finishthechart.Besuretofillineverybox.
Dimes Nickels Pennies
exa 2 0 3
exb 1 2 3
a 1 1
b 1 0
c 0 4
d 0
e 0
f 0
g 0
Bridges in Mathematics nn 11© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
FactFamilies6’s
1Writeanequationtomatcheachcubetrain.
example_______________ a_______________
b_______________ c_______________
2Colorinthecubetraintomatchtheequation.
example4+2=6 a3+2+1=6
b1+5=6 c1+4+1=6
3Subtract:
6–0=_____ 5–2=_____ 5–5=_____ 6–2=_____
6–4=_____ 6–1=_____ 6–3=_____ 5–4=_____
6–5=_____ 5–3=_____ 6–6=_____ 5–1=_____
4Fillinthemissingnumbers.
2+_____=6 _____+5=6 6=3+_____ 6=4+_____
3+_____=6 _____+0=6 6=2+_____ 6=6+_____
3 + 3 = 6
© The Math Learning Center12 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
Crayons&Coins
1Johnhadsomecrayons.Hegave5toJen.Nowhehas7crayonsleft.HowmanycrayonsdidJohnhavetostartwith?Showyourwork.
Johnstartedoutwith____________crayons.
CHALLENGE
2Hereare3clues:•Kendrahas5coins.•Shehas35¢.•Sheonlyhasnickelsanddimes.
HowmanynickelsdoesKendrahave?HowmanydimesdoesKendrahave?Showyourwork.
Kendrahas______nickels.Kendrahas______dimes.
Bridges in Mathematics nn 13© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Dominoes&CountingPatterns
1Fillinthemissingnumberstocompletetheadditionfacts.
+
7
+
9
+
1 0
+
8
2Fillinthemissingdotsandnumberstocompletetheadditionfacts.
2+
6
5+
8
+
1 2
+ 3
7
3Makeupyourowncombinationsforthesenumbers.Fillinthedotsandnumbers.
+
1 0
+
9
+
5
+
7
4Fillinthemissingnumberstocompletethepattern.
aSkip-countupby2’s.
22,24,26,_____,_____,_____
bSkip-countupby2’s.
27,29,31,_____,_____
cSkip-countdownby2’s.
19,17,15,_____,11,_____
dSkip-countdownby2’s.
43,41,_____,_____,35
© The Math Learning Center14 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Fish&Pictures
1Timhas12fish.7areyellowandtherestarered.HowmanyredfishdoesTimhave?Showyourwork.
Timhas_______redfish.
CHALLENGE
2Makeapicturethatisworth36¢.Youcanonlyusetheseshapes.Labelyourpicture.Provethatitisworth36¢.
Square–5¢ Circle–4¢ Triangle–3¢
Bridges in Mathematics nn 15© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Numbers&Coins
Penny 1¢ Nickel 5¢ Dime 10¢
Tracethenumbersandwords.Thendrawalinetothematchingsetofcoinsandfillinthecorrectamountofmoney.Onenumberdoesnothaveamatchingset.
ex
_____¢
1
_____¢
2
_____¢
3
_____¢
4
_____¢
5
_____¢
6
_____¢
10ten20twenty30thirty40forty50fifty60sixty70seventy80eighty
20
© The Math Learning Center16 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Blocks&Apples
1Rosahas6blocks.Erichas7moreblocksthanRosa.HowmanyblocksdoesErichave?Showyourwork.
Erichas__________blocks.
CHALLENGE
24applescost$1.00.HowmuchwillJennyhavetopayfor5apples?Showyourwork.
Jennywillhavetopay__________for5apples.
Bridges in Mathematics nn 17© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
FactFamilies7’s
1 Write an equation to match each cube train.
example _______________ a _______________
b _______________ c _______________
2 Color in the cube train to match the equation.
example 2 + 2 + 3 = 7 a 2 + 5 = 7
b 1 + 3 + 3 = 7 c 7 + 0 = 7
3 Subtract:
7 – 0 = _____ 6 – 2 = _____ 7 – 6 = _____ 7 – 2 = _____
7 – 4 = _____ 7 – 1 = _____ 7 – 3 = _____ 6 – 4 = _____
7 – 5 = _____ 6 – 3 = _____ 7 – 7 = _____ 7 – 1 = _____
4 Fill in the missing numbers.
3 + _____ = 7 _____ + 5 = 7 7 = 6 + _____ 7 = 4 + _____
5 + 2 = 7
© The Math Learning Center18 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Pennies,Bikes,&Trikes
1Tammyhas14pennies.Troyhas5pennies.HowmanymorepenniesdoesTammyhavethanTroy?
Tammyhas_________morepenniesthanTroy.
CHALLENGE
2Therearesomebikesandtrikesontheplayground.Thereare7seatsand19wheels.Howmanybikesarethere?Howmanytrikesarethere?Showyourwork.
Thereare________bikesontheplayground.
Thereare_________trikesontheplayground.
Bridges in Mathematics nn 19© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Fingers&Toes
1Writethe5’scountingpatternto70undertheten-framesbelow.Thefirst3numbershavebeendoneforyou.
5 10 15
2Practiceaddingandsubtracting5’s. 20 35 10 0 5 45 25 +5 +5 +5 +5 +5 +5 +5 _____ _____ _____ _____ _____ _____ _____
15 30 25 5 50 20 10 –5 –5 –5 –5 –5 –5 –5 _____ _____ _____ _____ _____ _____ _____
3Fillintheblanks.
a5feet.Howmanytoesinall?_______
b6hands.Howmanyfingersinall?_______
c4feet.Howmanytoesinall?_______
d9hands.Howmanyfingersinall?_______
e45toes.Howmanyfeet?_______
f35fingers.Howmanyhands?______
© The Math Learning Center20 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Inchworm’sGarden
HereisLittleInchworm’sGarden.Usetheinchsideofyourrulertomeasurethepathbetweeneachpartofthegarden.Writeyouranswersonthechartbelow.
Tomato Plant
Flower BedCarrot Patch
Pear Tree
Apple Tree
Potato Patch
From To How Many Inches?
1
2
3
4
5
6
Bridges in Mathematics nn 21© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Thinkingabout5’s
1Fillinthemissingnumbers.Thencolorinthecount-by-fivesnumbers,startingwith5(5,10,15,20,andsoon).
2 6 10
11 14 18
23 29
35 37
42 50
2Add:
5+5=_____ 15+5=_____ 21+5=_____ 34+5=_____
3Subtract:
20–5=_____ 15–5=_____ 35–5=_____ 50–5=_____
4Writethemissingnumbersontheline.
35 40 5530 75 9065
5What’snextinthisskipcountingpattern?1,6,11,16,_____,_____,_____,_____
© The Math Learning Center22 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Shells&Coins
1Rosahad14shells.Shegave3oftheshellstohersisterand4oftheshellstoherbrother.HowmanyshellsdidRosahaveleft?Showyourwork.
Rosahad______shellsleft.
CHALLENGE
2Jaredhas5coinsinhispocket.Theyareworth18¢inall.WhatcoinsdoesJaredhave?Showyourwork.
Herearethe5coinsJaredhasinhispocket:_______________,_______________,
_______________,_______________,_______________
Bridges in Mathematics nn 23© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
FactFamilies8’s
1Writeanequationtomatcheachcubetrain.
example_______________ a_______________
b_______________ c_______________
2Colorinthecubetraintomatchtheequation.
example5+3=8 a3+3+2=8
b2+6=8 c2+2+4=8
3Subtract:
8–0=_____ 7–2=_____ 7–5=_____ 8–2=_____
8–4=_____ 8–1=_____ 8–3=_____ 6–4=_____
8–5=_____ 7–3=_____ 8–7=_____ 8–6=_____
4Fillinthemissingnumbers.
3+_____=8 _____+4=8 8=7+_____ 8=2+_____
3 + 5 = 8
© The Math Learning Center24 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
Inchworm’sPaths
LittleInchwormwantstogetfromthehousetotheduckpond.ShecanusePathA,B,orC.
Path A
Path B
Path C
1Whichpathlooksshortest?(circleone)
PathAPathBPathC
2Usetheinchsideofyourruler.Measureeachpathtofindoutwhichoneisshortest.
aPathAis_________incheslong.
bPathBis_________incheslong.
cPathCis_________incheslong.
3Whichpathisshortest?_____________________________
4Whichpathislongest?_____________________________
CHALLENGE
5Usearedpencilormarker.Drawtheshortestpathfromthehousetotheduckpond.Measureyournewpathwiththeinchsideofyourruler.
Abouthowlongisyournewpath?_______________inches
Bridges in Mathematics nn 25© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
Ella’sPiggyBank
Ellatookallthecoinsoutofherpiggybank.Shemadeagraphaboutthem.
My Coin Graph
Pennies 1¢
Nickels 5¢
Dimes 10¢
1 2 3 4 5 6 7
1DoesEllahavemoredimesormorepennies?__________________________
2WhichcoindoesEllahavethemostof?__________________________
3Howmanyfewerdimesaretherethannickels?__________________________
4HowmuchmoneydoesEllahaveinherbank?__________________________
CHALLENGE
5Ellawantstobuyabinderfor$1.00.Howmuchmoremoneydoessheneed?Showyourwork.
© The Math Learning Center26 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
Pets&Coins
1Markhas3dogs,5cats,and8fish.Howmanypetsdoeshehaveinall?Showyourwork.
Markhas________petsinall.
CHALLENGE
2Hereare2clues.• Carlyhas2morenickelsthandimesinherpocket.• Shehas40cents.
HowmanynickelsdoesCarlyhave?HowmanydimesdoesCarlyhave?Showyourwork.
Carlyhas_______nickels.Carlyhas______dimes.
Bridges in Mathematics nn 27© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
FactFamilies9’s
1Writeanequationtomatcheachcubetrain.
example_______________ a_______________
b_______________ c_______________
2Colorinthecubetraintomatchtheequation.
example3+6=9 a3+3+3=9
b7+2=9 c4+5=9
3Subtract:
9–0=_____ 8–3=_____ 9–9=_____ 9–2=_____
9–4=_____ 9–1=_____ 8–5=_____ 9–8=_____
9–5=_____ 9–3=_____ 9–7=_____ 9–6=_____
4Fillinthemissingnumbers.
4+_____=9 _____+6=9 9=7+_____ 9=8+_____
6 + 3 = 9
© The Math Learning Center28 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
FishProblems
1Thereare12fishinthetank.5ofthefishareblue.Therestofthefisharered.Howmanyofthefishinthetankarered?Showyourwork.
_______ofthefishinthetankarered.
CHALLENGE
2Jacobhas12fish.Someofthefishareyellow.Someofthefisharered.Therearenoothercolors.Therearetwiceasmanyyellowfishasredfish.HowmanyyellowfishdoesJacobhave?HowmanyredfishdoesJacobhave?Showyourwork.
Jacobhas_______yellowfish.Jacobhas______redfish.
Bridges in Mathematics nn 29© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
CubesonaLine
1Writethenumbertoshowhowmanycubesthereareineachboxbelow.
ex a b c
Tens Ones Tens Ones Tens Ones Tens Ones
d e f g
Tens Ones Tens Ones Tens Ones Tens Ones
2Fillinthemissingnumbersonthenumberlinebelow.
5 10 250 40 50 70
3Add: 20 10 30 40 50 15 25 +10 +5 +8 +6 +10 +5 +5 ____ ____ ____ ____ ____ ____ ____
3 0
© The Math Learning Center30 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
AntPaths
1Howmanycentimetersdoesthearmyanthavetogotogettoeachbug?Usethecentimetersideofyourrulertofindout.
aOnPathAthearmyanthastotravel_________centimeters.
bOnPathBthearmyanthastotravel_________centimeters.
cOnPathCthearmyanthastotravel_________centimeters.
2 The army ants want to get the scorpion. They can use Path A, B, or C.
Path A
Path BPath C
aUsethecentimetersideofyourrulertomeasureeachpath.
PathAis_________centimeterslong.
PathBis_________centimeterslong.
PathCis_________centimeterslong.
bIfyouwereanarmyant,whichpathwouldyouuse?Path_______Why?
Path C
Path B
Path A
Bridges in Mathematics nn 31© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
FactFamilies10’s
1Writeanequationtomatcheachcubetrain.
example_______________ a_______________
b_______________ c_______________
2Colorinthecubetraintomatchtheequation.
example6+4=10 a8+2=10
b3+7=10 c1+2+3+4=10
3Subtract:
10–0=_____ 10–3=_____ 10–9=_____ 10–2=_____
10–4=_____ 10–1=_____ 10–5=_____ 10–8=_____
9–4=_____ 10–6=_____ 10–7=_____ 10–10=_____
4Fillinthemissingnumbers.
5+_____=10 _____+7=10 10=6+_____ 10=1+_____
5 + 5 = 10
© The Math Learning Center32 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
AntStoryProblems
Astoryproblemgivesyousomefactsandasksaquestion.Foreachproblem•underlinethefacts.•putaboxaroundthequestion.•solvetheproblemandshowyourwork.•writetheanswerontheline.
exampleTherewere10armyants.3wentouttogetsomefood.Howmanyantswereleft?
Therewere_____antsleft.
16antsareworkinghard.Somemorecometohelp.Nowthereare13ants.Howmanyantscametohelp?
_____antscametohelp.
2Thereare7antsatthetopofthetunnel.Thereare4antsinthemiddlechamber.Thereare5antsinthelowerchamber.Howmanyantsinall?
Thereare_____antsinall.
3Thereare6ants.Eachanthas3seeds.Howmanyseedsinall?
Thereare_____seedsinall.
10 – 3 = 7
7
Bridges in Mathematics nn 33© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
TriangleFactFamilies
DrawalinetomatcheachUnifixcubetraintoitsfactfamilytriangle.Thenwrite2additionand2subtractionsentencestomatch.
example
1
2
3
4
3 + 6 = 9
6 + 3 = 9
9 - 6 = 3
9 - 3 = 6
7
2 9
6
3 9
10
7 3
6
4 10
2
10 8
© The Math Learning Center34 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
T-Shirts&Turtles
1Lingotat-shirtfor7dollarsandateddybearfor4dollars.Hegavetheclerka20-dollarbill.Howmuchmoneydidhegetback?Showyourwork.
Lingot_____dollarsback.
CHALLENGE
2Two8-leggedspiderslandedona4-leggedturtle.Thenthree2-leggedbirdslandedontheturtle.Howmanylegsinall(countingtheturtle)?Showyourwork.
Therewere_____legsinall.
Bridges in Mathematics nn 35© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
AllaboutTens
1Circlethetwonumbersineachboxthataddupto10.
example9 3
5 1
a5 4
6 2
b7 2
3 0
c2 8
5 3
2Write2additionand2subtractionsentencestomatcheachten-frame.
example a
b c
3Subtract: 10 10 10 10 10 10 10
–7 –5 –6 –3 –4 –9 –2 _____ _____ _____ _____ _____ _____ _____
4Fillinthemissingnumbers.
3+_____=10 _____+5=10 4+6=_____ 9+_____=10
10=7+_____ 10=8+_____ 6+_____=10 1+4+5=_____
6 + 4 = 10 4 + 6 = 10
10 – 4 = 6 10 – 6 = 4
© The Math Learning Center36 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
Dollars&Quarters
1Janahas7dollars.Howmanymoredollarsdoessheneedtohave14dollarsaltogether?Showyourwork.
Jananeeds______moredollars.
CHALLENGE
2Timmyhas7dollars.Howmanymorequartersdoesheneedtohave12dollarsaltogether?Showyourwork.
Timmyneeds_______morequarters.
Bridges in Mathematics nn 37© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
Factsto8
1Add: 4 4 3 1 8 3 5 +4 +3 +5 +2 +0 +3 +2 _____ _____ _____ _____ _____ _____ _____
3 5 7 6 2 2 2 +2 +3 +1 +2 +5 +6 +2 _____ _____ _____ _____ _____ _____ _____
4+3=_____ 5+3=_____ 4+2+2=_____ 1+2+3=_____
2Subtract: 7 8 8 8 7 8 6
–5 –0 –4 –1 –3 –5 –4 _____ _____ _____ _____ _____ _____ _____
8 7 8 8 8 8 7–2 –2 –8 –7 –3 –6 –4 _____ _____ _____ _____ _____ _____ _____
6–5=_____ 6–3=_____ 5–2=_____ 7–6=_____
3GetUnifixcubes.Maketrainsof1,2,3,and4cubes.Putthetrainstogethertomakethenumbersinthehexagonsbelow.Colorintheboxestoshowwhichtrainsyouputtogether.Youcanusemorethan2trainstomakeanumber.
1 2 3 4
example
1 23 4
5
a
1 23 4
6
b
1 23 4
7
c
1 23 4
8
d
1 23 4
9
e
1 23 4
10
© The Math Learning Center38 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
Flowers&Oranges
1Jenhadsomeflowers.Herfriendgaveher9moreflowers.Nowshehas14flowers.HowmanyflowersdidJenhavetostartwith?Showyourwork.
Jenhad______flowerstostartwith.
CHALLENGE
2Jonhad4oranges.Hecuteachorangeinto8slices.Howmanyorangeslicesdidhehaveinall?Showyourwork.
Jonhad________orangeslicesinall.
Bridges in Mathematics nn 39© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
TellingTimeonTwoKindsofClocks
1Readeachoftheseclockfacesandwritethetimeonthedigitalclock.
a b c d
2Readeachofthesedigitalclocksandmarkthetimeontheclockface.
a b c d
© The Math Learning Center40 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
LadybugStoryProblems
Astoryproblemgivesyousomefactsandasksaquestion.Foreachproblem• underlinethefacts.• putaboxaroundthequestion.• solvetheproblemandshowyourwork.• writetheanswerontheline.
exampleTherewere7ladybugsontheleaf.6morelandedontheleaf.Howmanyladybugsinall?
Therewere_____ladybugsinall.
110ladybugsweresittingonaleaf.Abirdcameandchased4ofthemaway.Howmanyladybugswereleft?
_____ladybugswereleft.
2Thereare4ladybugsontheleaf.Howmanylegsinall?(Ladybugshave6legs.)
Thereare_____legsinall.
3Therewere5ladybugsonaleaf.Somemoreladybugscame.Thentherewere12ladybugsontheleaf.Howmanyladybugscame?
_____ladybugscame.
7 + 6 = 13
13
Bridges in Mathematics nn 41© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
Factsto9
1Add:
5 4 3 2 9 4 3 +4 +4 +6 +2 +0 +3 +5 _____ _____ _____ _____ _____ _____ _____
7 5 8 6 4 2 1 +2 +2 +1 +2 +5 +6 +7 _____ _____ _____ _____ _____ _____ _____
4+3=_____ 5+2+2=_____ 6+2=_____ 0+6+3=_____
2Subtract:
8 9 8 9 7 9 8 –5 –0 –4 –1 –3 –5 –3 _____ _____ _____ _____ _____ _____ _____
9 7 9 9 9 8 7 –2 –2 –8 –9 –3 –6 –5 _____ _____ _____ _____ _____ _____ _____
9–4=_____ 9–6=_____ 9–7=_____ 8–7=_____
3GetUnifixcubes.Maketrainsof2,3,4,and8cubes.Putthetrainstogethertomakethenumbersinthehexagonsbelow.Colorintheboxestoshowwhichtrainsyouputtogether.Youcanuseoneormoretrainstomakeanumber.
2 3 4 8
example
2 34 8
5
a
2 34 8
6
b
2 34 8
7
c
2 34 8
8
d
2 34 8
9
e
2 34 8
10
© The Math Learning Center42 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
Cookies&Apples
1Therewere15cookiesontheplate.Thedoggotsomeofthem.Nowthereareonly 7cookiesontheplate.Howmanydidthedogget?Showyourwork.
Thedoggot______cookies.
CHALLENGE
2Annhad4apples.Shecuteachappleinto5slices.Eachslicehad3seedsinit.Howmanyseedsinall?Showyourwork.
Therewere______seedsinall.
Bridges in Mathematics nn 43© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NumberPatterns
1aFillinthemissingnumbersonthischart.
1 2 4 5 6 7 8 9 10
11 12 13 15 16 18 19 20
21 23 24 25 27 28 29 30
32 33 34 35 36 37 38 40
41 42 44 45 46 47 49
51 53 54 56 57 58 59 60
62 63 64 65 67 68 70
71 72 74 75 76 78 79
81 82 83 85 86 87 89 90
91 93 94 96 97 98 99 100
bColorallthecounting-by-2’snumbersred.
cColorallthecounting-by-5’snumbersyellow.
dColorallthecounting-by-10’snumbersblue.
2Thenumbersintheboxaremixedup!Puttheminorderfromleasttogreatest.
62 51 17 78 40 14
_______,_______,_______,_______,_______,_______
least greatest
© The Math Learning Center44 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
MeasuringLadybugPaths
1Measuretheladybugs’pathsbelow.Usethecentimetersideofyourruler.Writethelengthofeachpathonthecorrectline.
2Whichladybughasthelongestpath?(circleone)
BugABugBBugCBugD
3HowmuchlongerisBugA’spaththanBugB’spath?______________________
4HowmuchshorterisBugD’spaththanBugA’spath?__________________
5Howfardidthe4ladybugswalkinall?Writeanumbersentencetoshow.
6Drawapathfromtheladybugtotheflower.Measureitwiththecentimetersideofyourruler.
Bug A
Bug B
Bug C
Bug D
aBugAwalked______cm
bBugBwalked______cm
cBugCwalked______cm
dBugDwalked______cm
Mypathis_______centimeterslong.
Bridges in Mathematics nn 45© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
Factsto10
1Add:
5 4 3 2 10 5 7+5 +5 +7 +3 +0 +3 +2 ______ ______ ______ ______ ______ ______ ______
8 5 9 6 4 2 4+2 +2 +1 +3 +6 +6 +3 ______ ______ ______ ______ ______ ______ ______
3+4+2=_____ 2+3+5=_____ 1+2+3+4=_____
2Subtract:
9 10 8 10 9 10 9 –5 –0 –4 –1 –3 –5 –4 ______ ______ ______ ______ ______ ______ ______
10 7 10 10 10 10 9 –2 –3 –8 –7 –3 –10 –7 ______ ______ ______ ______ ______ ______ ______
10–4=_____ 10–6=_____ 10–9=_____ 9–6=_____
3GetUnifixcubes.Maketwotrainsof2andtwotrainsof3.Putthetrainsto-gethertomakethenumbersinthehexagonsbelow.Colorintheboxestoshowwhichtrainsyouputtogether.Youcanusemorethan2trainstomakeanumber.Thereisonenumberyoucannotmake.Crossitoutwhenyoufindit.
2 32 3
example
2 23 3
5
a
2 23 3
6
b
2 23 3
7
c
2 23 3
8
d
2 23 3
9
e
2 23 3
10
© The Math Learning Center46 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
Snacks
1Thereweresomegranolabarsonthetable.Thekidsate6ofthem.Nowthereare9granolabarsleftonthetable.Howmanygranolabarswereonthetabletostartwith?Showyourwork.
Therewere_____granolabarsonthetabletostartwith.
CHALLENGE
2Linbought3fruitstripsfor45¢each.Hegavetheclerk$2.00.Howmuchchangedidhegetback?Showyourwork.
Lingot_________backinchange.
Bridges in Mathematics nn 47© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
Addition&SubtractionTables
1Fillinthemissingnumbersontheadditiontables.Someofthenumbershavealreadybeenfilledinforyou.
a
+ 2 3 4 5 6 7
1 3
2 6
3 10
4
5 8 11
6
b
+ 3 4 5 6 7 8
3 6
4 9
5 13
6
7 11 14
8
2Fillinthemissingnumbersonthesubtractiontables.Someofthenum-bershavealreadybeenfilledinforyou.
a
0 1 2 3 4 5 –
1 2 0
2 3 1
3 2
4 0 3
5 4
6 5
b
6 7 8 9 10 11 –
1 0
2 7 1
3 8 2
4 3
5 6 4
6 5
© The Math Learning Center48 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
ComparingNumbersto100
Hereare6pairsofUnifixcubecollections.Counttofindoutwhichcollectionhasmoreandwhichcollectionhasfewercubes.Writenumbersandsignstoshow.
<fewerthan=thesameas>morethan
example 1
2 3
4 5
60 45>
Bridges in Mathematics nn 49© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
MissingNumbers
1Fillinthemissingnumberstocompletetheadditionfacts.
5+5=_____ 4+4=_____ 2+2=_____
7+_____=14 8+_____=16 9+_____=18
_____+6=12 _____+1=2 _____+3=6
10+2=_____ 6+10=_____ 10+4=_____
3+_____=13 10+_____=18 8+_____=16
2Fillinthemissingnumberstocompletethepattern.
aSkip-countforwardby5’s.
5,10,15,_____,25,_____,_____
bSkip-countforwardby5’s.
40,_____,50,_____,_____,65
cSkip-countforwardby5’s.
13,18,23,_____,33,_____,_____
dSkip-countforwardby5’s.
19,24,_____,34,39,_____,49
eSkip-countbackwardby5’s.
30,25,_____,15,_____,_____
fSkip-countbackwardby5’s.
27,22,_____,12,_____,_____
CHALLENGE
3Skip-countby5’s.Circlethewordtoshowwhetheryouwentforwardorback-wardeachtime.
a143,138,133,_____,123,_____,113,_____,_____,98 forwardbackward
b332,337,342,_____,352,357,_____,_____,372,_____ forwardbackward
c488,493,498,_____,_____,513,_____,_____,_____,533 forwardbackward
d267,262,257,_____,_____,_____,237,_____,227,_____ forwardbackward
© The Math Learning Center50 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
Beads&Patterns
1aTrinahas17beads.9ofthebeadsareblue,andtherestarered.HowmanyredbeadsdoesTrinahave?Showyourwork.
Trinahas_______redbeads.
bTrinawantstomakeabraceletwithherbeads.Howcanshemakeacolorpat-ternwithher17blueandredbeads?Drawapicturetoshow.
CHALLENGE
2Lookforapattern.Fillinthemissingnumbersthatfityourpattern.
a1,7,13,19,______,______,______
b2,7,12,17,______,______,______,37,______,______,52
c25,20,15,______,______,______
d24,20,16,12,______,______,______
e1,2,4,7,11,______,______,29,______,46,_______
f1,2,4,8,_____,_____,_____,128,_____,_____
Bridges in Mathematics nn 51© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
Doubles&Neighbors
1Colortheten-stripstomatcheachadditionproblem.Writetheanswer.
ex
7+7_____
a
7+8_____
b
6+6_____
c
6+7_____
d
8+8_____
e
9+8_____
f
9+9_____
g
10+9_____
2Subtract. 10 11 8 9 6 7 4 –5 –5 –4 –4 –3 –3 –2 _____ _____ _____ _____ _____ _____ _____
14 15 12 13 16 17 18 –7 –7 –6 –6 –8 –8 –9 _____ _____ _____ _____ _____ _____ _____
14
© The Math Learning Center52 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
TheGymTeacher&JasonattheSchoolStore
1aMrs.Brownisthegymteacher.Shehas15soccerballsand8footballs.HowmanymoresoccerballsthanfootballsdoesMrs.Brownhave?Showyourwork.
Mrs.Brownhas______moresoccerballsthanfootballs.
bHowmanysoccerballsandfootballsdoesMrs.Brownhaveinall?Showyourwork.
Mrs.Brownhas______soccerballsandfootballsinall.
CHALLENGE
2Jasonhad2quartersand1dime.Hewenttotheschoolstoretospendallhismoney.What3thingscouldhebuy?Findatleast2differentanswers.Showyourwork.
School Store Price ListMarkers $0.25 eachTablets $0.30 eachErasers $0.10 eachPencils $0.20 eachFolders $0.15 each
Bridges in Mathematics nn 53© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
FastNines&FastTens
1Colortheten-stripstomatcheachadditionproblem.Writetheanswer.
ex
9+7_____
a
9+3_____
b
6+9_____
c
10+8_____
d
9+5_____
e
4+9_____
f
9+8_____
g
10+7_____
2Subtract:
16 16 12 12 15 15 18 –10 –9 –10 –9 –10 –9 –10 _____ _____ _____ _____ _____ _____ _____
18 14 14 13 13 17 17 –9 –10 –9 –10 –9 –10 –9 _____ _____ _____ _____ _____ _____ _____
16
© The Math Learning Center54 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
BaseballCards &TeriattheSchoolStore
1Jameshad17baseballcards.Hegave9ofthemtoAndre.Whohasmorebase-ballcardsnow,JamesorAndre?Howmanymore?Showyourwork.
_________________ has_____morebaseballcard(s)than_______________.
CHALLENGE
2Teriwenttotheschoolstore.Shegavetheclerkaone-dollarbill.Shegot30¢backinchange.Whatmightshehavebought?Find3possibleanswers.Showyourwork.
School Store Price ListMarkers $0.25 eachTablets $0.30 eachErasers $0.10 eachPencils $0.20 eachFolders $0.15 each
Bridges in Mathematics nn 55© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
ScoutThemOutAdd&Subtract
1aCircleallthe+2factsinblue.Thentakeapencilandgobackanddothem.
bCircleallthe+10factsinred.Thentakeapencilandgobackanddothem.
2 10 2 5 7 9 2 +6 +1 +8 +2 +2 +10 +4 _____ _____ _____ _____ _____ _____ _____
10 10 2 2 10 6 11 +4 +7 +8 +2 +3 +10 +2 _____ _____ _____ _____ _____ _____ _____
2aCircleallthe–2factsinblue.Thentakeapencilandgobackanddothem.
bCircleallthe–10factsinred.Thentakeapencilandgobackanddothem.
10 14 6 9 12 19 7 –2 –10 –2 –2 –10 –10 –2 _____ _____ _____ _____ _____ _____ _____
13 17 4 16 14 18 11 –2 –10 –2 –10 –2 –10 –2 _____ _____ _____ _____ _____ _____ _____
15 20 5 8 11 20 3 –2 –10 –2 –2 –10 –10 –2 _____ _____ _____ _____ _____ _____ _____
3Trueorfalse?Circleone.
a10+5=15TF b7+7=13TF c5+6=11TF
d13–3=8TF e14–7=7TF f19–10=9TF
© The Math Learning Center56 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
ExtraFacts
Sometimesstoryproblemsgiveyoumorefactsthanyouneedtosolvetheproblem.Ineachproblembelow,crossoutthefactyoudon’tneed.Thensolvetheproblem.Showyourwork.
1Neenabought7redapples,8greenapples,and3yellowapples.Neenais12yearsold.HowmanyapplesdidNeenabuy?
Neenabought_________apples.
2Pedrohad15dollars.Hespent9dollarsonabook.Hisfriendhad12dollars.HowmuchmoneydidPedrohaveleft?
Pedrohad______dollarsleft.
3Thegymteacherhad16soccerballs.Shehad14footballs.Shegave8ofthesoccerballstotheplaygroundhelper.Howmanysoccerballsdidshehaveleft?
Thegymteacherhad______soccerballsleft.
CHALLENGE
4Theladybugate28aphidsinthemorning.Thenshetookanaponaleaffor3hours.Sheate34aphidsintheafternoon.Howmanyaphidsdidsheeatinall?
Theladybugate______aphidsinall.
Bridges in Mathematics nn 57© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
MakeTenFacts
1MakeTenfactsarepairsofnumbersthataddupto10,like5+5,4+6,and8+2.
aCirclealltheMakeTenfactsinred.Thentakeapencilandgobackanddothem.
bCircleallthefactsthatarenotMakeTenfactsinblue.Thentakeapencilandgobackanddothem.
4 6 3 5 4 9 4 +6 +1 +8 +5 +3 +1 +4 _____ _____ _____ _____ _____ _____ _____
5 3 2 7 6 5 10 +4 +7 +8 +2 +3 +3 +0 _____ _____ _____ _____ _____ _____ _____
6 6 5 3 1 2 3 +1 +4 +5 +7 +9 +2 +6 _____ _____ _____ _____ _____ _____ _____
2Addthesestringsofnumbers.UseyourMakeTenfactstohelp.
examplea4+5+2+5=_______ exampleb8+3+2+7=_______
a2+9+1+6=_______ b3+4+8+2=_______
c3+7+4+6=_______ d3+3+5+5=_______
e6+5+5+9+1=_______ f7+2+3+7+1=_______
10 10 10
16 20
© The Math Learning Center58 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
A.M.orP.M.?
A.M.andP.M.areabbreviations.
PeopleoftensaythattimesintheA.M.aremorningtimes,butA.M.reallyindicatesanytimebetweenmidnightandnoon.
PeopleoftensaythattimesintheP.M.aretimesintheafternoonornight.P.M.reallyindicatesanytimebetweennoonandmidnight.
3:00a.m.issoearlyinthemorningit’snotevenlightyet.Mostpeopleareasleep.3:00p.m.isintheafternoon,justaboutthetimeschoolgetsout.Mostpeopleareawakeat3:00p.m.
1Circlethetimethatpeoplewouldprobablydoeachofthesethingsonaschoolday.
Activity A.M. P.M.
aEatdinner.
6:00a.m. 6:00p.m.
bEatbreakfast.
7:00a.m. 7:00p.m.
cWatchT.V.
5:00a.m. 5:00p.m.
dHomework
4:00a.m. 4:00p.m.
Activity A.M. P.M.
eTurnonanightlight.
8:30a.m. 8:30p.m.
fRideabike.
3:30a.m. 3:30p.m.
2Drawapictureofsomethingyoudoat10:00a.m.onaschoolday.
Bridges in Mathematics nn 59© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
MoreScoutThemOuts
1aCirclealltheDoublefacts(e.g.,10+10)inblue.Thentakeapencilandgobackanddothem.
bCirclealltheNeighborfacts(e.g.,4+5)inred.Thentakeapencilandgobackanddothem.
2 2 5 5 4 4 6 +2 +3 +5 +6 +3 +4 +6 _____ _____ _____ _____ _____ _____ _____
6 6 7 8 9 9 11 +5 +7 +7 +7 +9 +10 +11 _____ _____ _____ _____ _____ _____ _____
3 3 8 12 12 13 13 +3 +4 +8 +12 +13 +13 +14 _____ _____ _____ _____ _____ _____ _____
2aCirclealltheHalffacts(e.g.,8–4)inblue.Thentakeapencilandgobackanddothem.
bCircleallthe–10factsinred.Thentakeapencilandgobackanddothem.
10 15 6 19 13 14 4 –5 –10 –3 –10 –10 –7 –2 _____ _____ _____ _____ _____ _____ _____
16 20 12 40 60 100 80 –8 –10 –6 –20 –30 –50 –40 _____ _____ _____ _____ _____ _____ _____
3Trueorfalse?Circleone.
a6+7=13TF b9+8=17TF c5+5=9TF
d14–7=8TF e16–8=10TF f12–6=6TF
© The Math Learning Center60 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
Numbers&Words
1Tracethenumeralsandthewords.
1one2two3three4four5five6six7seven8eight9nine10ten20twenty30thirty40 forty50fifty60sixty70 seventy80eighty90ninety100onehundred
2Labeleachsetofbase10pieceswiththecorrectnumbername.
example________________________
a_________________________________
b________________________________
c________________________________
ninety-four
Bridges in Mathematics nn 61© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
MysteryShapes
Thereare6mysteryshapesontheright.Readeachriddlebelowandwritethenameofthemysteryshape.
1Ihave6faces.2ofmyfacesaresquare.4ofmyfacesarerectanglesthatarenotsquares.
Iamthe_________________________________________.
2Ihavenofacesatall.Iamroundallthewayaround.
Iamthe_________________________________________.
3Ihave5faces,butyoucanonlysee2ofthem.4ofmyfacesaretriangles.Theymeetatonepointcalledavertex.
Iamthe_________________________________________.
4Twoofmyfacesarecircles.Ifyousetmeononeofthosefaces,Iwillnotroll.
Iamthe_________________________________________.
5Ihave5faces.3ofmyfacesarerectangles.2ofmyfacesaretriangles.
Iamthe_________________________________________.
6Ihave6faces.Allmyedgesareexactlythesamelength.
Iamthe_________________________________________.
cube
pyramid
rectangular prism
sphere
cylinder
triangular prism
© The Math Learning Center62 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
MoreExtraFactsPractice
Sometimesstoryproblemsgiveyoumorefactsthanyouneedtosolvetheproblem.Ineachproblembelow,crossoutthefactyoudon’tneed.Thensolvetheproblem.Showyourwork.
1Nickhas3cats.Hehad12fish.Hegave4ofthefishtohisfriend.Howmanyfishdoeshehaveleft?
Nickhas_______fishleft.
2Lin’sbigsisteris15.Shelistenedto8songsonherCDplayerinthemorning.Shelistenedto9moresongsthatnight.Howmanysongsdidshelistentoinall?
Lin’sbigsisterlistenedto______songsinall.
3Ambermade9cupcakes.Thenshemade12morecupcakes.Ittook2cupsofsugartomakethefrosting.Howmanycupcakesdidshemakeinall?
Ambermade______cupcakesinall.
CHALLENGE
4TheGreenDragonhad250goldpieces.Heis18feettall.Heismadbecausethetrollstook60ofhisgoldpieces.Howmanygoldpiecesdoeshehaveleft?
TheGreenDragonhas______goldpiecesleft.
Bridges in Mathematics nn 63© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
MoreMakeTenFacts
1MakeTenfactsarepairsofnumbersthataddupto10,like9+1,4+6,and3+7.
aCirclealltheMakeTenfactsinred.Thentakeapencilandgobackanddothem.
bCircleallthefactsthatarenotMakeTenfactsinblue.Thentakeapencilandgobackanddothem.
7 6 2 7 5 10 5 +3 +6 +8 +7 +5 +0 +4 _____ _____ _____ _____ _____ _____ _____
6 3 8 7 6 9 0 +7 +7 +8 +8 +4 +9 +10 _____ _____ _____ _____ _____ _____ _____
10 1 4 3 4 2 10 +10 +9 +6 +2 +3 +8 +9 _____ _____ _____ _____ _____ _____ _____
2Addthesestringsofnumbers.UseyourMakeTenfactstohelp.
exa3+6+6+4=_______ exb8+5+2+5+4=_______
a3+7+9+1=_______ b2+6+4+2=_______
c9+5+5+3+7=_______ d8+2+5+2+5=_______
3Subtract:
10–6=_______ 10–8=_______ 10–5=_______ 10–3=_______
10–9=_______ 10–1=_______ 10–4=_______ 10–2=_______
19 24
10 10 10
© The Math Learning Center64 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
UsingMakeTenFactstoHelpSubtract
DJHoppersaysyoucanusewhatyouknowaboutmakingtenstohelpsubtract.
Ifthefactis15–9,youcanthinkaboutmakingaten(9+1=10)andthenadd-ing5moretogetto15.DJlikestoshowhisworkonthenumberline,likethis.
15–9=______+ 1 + 5
15109
1Makehopsonthenumberlineandlabelthemtosolvesubtractionproblems.
example14–8=______
14108
+ 2 + 4
a13–7=______
13107
b15–7=______
15107
c12–8=______
12108
6
6
Bridges in Mathematics nn 65© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
Symmetry
1aCircletheshapesthataresymmetrical.
bCrossouttheshapesthatarenotsymmetical.
Square Circle Scalene Triangle Rectangle
Pentagon Ellipse Right Triangle Trapezoid
2Howmanylinesofsymmetrycanyoufindineachshape?Useyourrulertodrawthelinesofsymmetry,andwritethenumber.
example
Anequilateraltriangle
has______linesofsymmetry.
a
Anisoscelestrapezoid
has______linesofsymmetry.
b
Arhombus
has______linesofsymmetry.
c
Ahexagon
has______linesofsymmetry.
3
© The Math Learning Center66 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
TheShapesShop
1Countthemoneytofindouthowmucheachshapeisworth.Writethepriceontheshape.
a b c
2MariaboughtsomeshapesattheShapesShop.Sheusedallhershapestomakethispicture.Howmuchmoneydidshespend?Showyourwork.
3Usesquares,circles,andtrianglestomakeapictureworth48¢.Labelyourworktoproveit.
______¢______¢
______¢
Bridges in Mathematics nn 67© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
ThinkingaboutPlaceValue
1Tracethenumeralsandthewords.
1one2two3three4four5five6six7seven8eight9nine10ten11eleven12twelve13thirteen14fourteen15 fifteen16sixteen17 seventeen18eighteen19nineteen20twenty100onehundred2Labeleachsetofbase10pieceswiththecorrectnumbername.
example________________________ a________________________________
b________________________________ c________________________________
one hundred fifteen
© The Math Learning Center68 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
TwoDifferentWaystoWriteMoneyAmounts
Ifyouhaveanamountofmoneylessthanadollar,youcanwritetheamountwithacentssignoradollarsign.
1Countthemoneyineachbox,andwriteitintwodifferentways.
ex _________or_________
a _________or_________
b _________or_________
c _________or_________
2Writethenameofeachcoin.Showhowtowriteitwithacentssignoradollarsign.Thendrawadifferentwaytomakethesameamountofmoneywithmorethanonecoin.
Coin name
ex_______________ a________________ b________________
Written two ways
________or________ ________or________ ________or________
Different way to make it.
nickel
5¢ $0.05
23¢ $0.23
1¢1¢ 1¢
1¢ 1¢
Bridges in Mathematics nn 69© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
SubtractionStrategies
1aCirclealltheSubtract2’sinblue.Thentakeyourpencilandgobackanddothem.(Example10–2or16–2)
bCirclealltheSubtractHalvesinred.Thentakeyourpencilandgobackanddothem.(Example12–6or14–7)
cCirclealltheTakeAwayTensingreen.Thentakeyourpencilandgobackanddothem.(Example14–10or19–10)
dCirclealltheRunawayOnesinpurple.Thentakeyourpencilandgobackanddothem.(Example13–3or17–7)
eAndnow—seeifyoucanusethefactsyou’vecircledandsolvedtohelpyoufigureouttherest!
15 14 13 10 14 14 19 –2 –6 –3 –2 –7 –8 –9 _____ _____ _____ _____ _____ _____ _____
15 17 17 11 16 18 19 –5 –8 –10 –2 –8 –8 –2 _____ _____ _____ _____ _____ _____ _____
18 10 18 19 13 14 11 –9 –5 –4 –10 –2 –4 –5 _____ _____ _____ _____ _____ _____ _____
16 14 12 16 14 12 20 –9 –10 –10 –10 –8 –9 –10 _____ _____ _____ _____ _____ _____ _____
120 83 140 160 29 180 48 –60 –10 –70 –80 –2 –90 –8 _____ _____ _____ _____ _____ _____ _____
© The Math Learning Center70 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
Sara’sPockets
1Sarahas4coinsinherrightpocket.Together,theyareworth30¢.What4coinsdoesSarahaveinherrightpocket?Showyourwork.
The4coinsSarahasinherrightpocketare_________________________________
2Sarahas7coinsinherleftpocket.Together,theyareworth24¢.What7coinsdoesSarahaveinherleftpocket?Showyourwork.
The7coinsSarahasinherleftpocketare___________________________________
Bridges in Mathematics nn 71© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
Halves
1Circlethecorrectanswer.
aIfyoucutthissquareinhalf,whattwoshapeswillyouget?
bIfyoucutthisrectangleinhalf,whattwoshapeswillyouget?
cIfyoucutthishexagoninhalf,whattwoshapeswillyouget?
2Subtract:
10 16 20 12 14 18 6 –5 –8 –10 –6 –7 –9 –3 _____ _____ _____ _____ _____ _____ _____
40 60 24 30 80 100 22 –20 –30 –12 –15 –40 –50 –11 _____ _____ _____ _____ _____ _____ _____
400 600 200 120 180 160 140 –200 –300 –100 –60 –90 –80 –70 _____ _____ _____ _____ _____ _____ _____
© The Math Learning Center72 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
ComparingNumbersto300
1Counttofindoutwhichsetofbasetenpiecesineachpairisgreaterandwhichisless.Writenumbersandsignstoshow.
<lessthan=thesameas>greaterthan
example
____________
a
____________
b
____________
2Readthenumbersinthebox.Thenwritetheminorderonthelinesfromleasttogreatest.
261 107 67 113 204
_______________________________________________________least greatest
124 213
Bridges in Mathematics nn 73© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
FactFamilyTriangles
MatcheachUnifixtraintoitsfactfamilytriangle.Thenwrite2additionand2subtractionsentencestomatch.Writethemunderthetrain.
example
1
2
3
4
12
5 7
11
6 5
13
4 9
14
6 8
15
9 6
4 + 9 = 1313 – 4 = 9
9 + 4 = 1313 – 9 = 4
© The Math Learning Center74 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
Bowls&Vans
1Joshgot12goldfish.Hewantstoput3goldfishineachlittlefishbowl.Howmanylittlefishbowlswillheneed?Showyourwork.
Joshwillneed_________littlefishbowls.
CHALLENGE
236kidsaregoingtothepark.Eachvancanhold6kids.Howmanyvanswilltheyneedtotakeallthekidstothepark?Showyourwork.
Theywillneed_________vanstotakeallthekidstothepark.SOCCER CITY
Bridges in Mathematics nn 75© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
Puzzlesabout Ten&More
1Fillinthemissingnumberstosolvetheseequations.Usethepicturestohelp.
a______=5+5 b10=2+4+______
c10=______+2 d7+______=10
e10–______=4 f10–______=7
g4+5=______+7 h10–5=2+______
2Fillinthemissingnumberstosolvetheseequations.
5+4+1=______ 6+4+______=13 5+______+9=19
16–_____=6 14–______=7 12–6=______
10–3=2+______ 12–6=2+______ 16–8=______+1
CHALLENGE
3Fillinthemissingnumberstosolvetheseequations.
90–30=20+______ 143–11=127+______ 160–18=______+15
© The Math Learning Center76 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
AnotherTriptotheShapesShop
Triangles Trapezoids Circles Squares Rectangles
10¢
10¢
25¢
25¢
5¢
5¢
15¢
15¢
20¢
20¢
1Howmuchdoesthisshapepicturecost?Circlethecoinsyoucouldusetopayforit.
25¢
20¢
5¢ 5¢
2Drawavehicle(car,boat,truck,plane,scooter,bike,skateboard)thatcosts75¢.Labelyourpicturewiththeprices.Addthenumberstocheckyourwork.
Bridges in Mathematics nn 77© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
MakeTenstoSubtract
DJHoppersaysyoucanusewhatyouknowaboutmakingtenstohelpsubtract.
Ifthefactis15–8,youcanthinkaboutmakingaten(8+2=10)andthenadd-ing5moretogetto15.DJlikestoshowhisworkonthenumberline,likethis.
15–8=______
8 10 15
+2 +5
1Makehopsonthenumberlineandlabelthemtosolvesubtractionproblems.
a14–7=______
7 10 14
b16–9=______
9 10 16
c13–6=______
6 10 13
d14–8=______
8 10 14
7
© The Math Learning Center78 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
Books&GranolaBars
1Jose,Matt,andDaniwenttothelibrary.Theyeachcheckedout5books.Howmanybooksisthatinall?Showyourwork.
Jose,Matt,andDanicheckedout________booksinall.
CHALLENGE
2Showyourworkoneachproblem.4granolabarscost$2.00.
aHowmuchdoes1granolabarcost?________________________
bHowmuchdo2granolabarscost?________________________
cHowmuchdo5granolabarscost?________________________
Bridges in Mathematics nn 79© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
MoreFactFamilyTriangles
MatcheachUnifixtraintoitsfactfamilytriangle.Thenwrite2additionand2subtractionsentencestomatch.Writethemunderthetrain.
example
1
2
3
4
14
9 5
13
6 7
11
7 4
12
9 3
13
8 5
4 + 7 = 1111 – 4 = 7
7 + 4 = 1111 – 7 = 4
© The Math Learning Center80 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
Ants&theNumberBox
1Thereare4linesofants.Thereare5antsineveryline.Thequeenwants30antsforherparade.
aHowmanyantsarelineduprightnow?Showyourwork.
bHowmanymoreantsneedtolineup?Showyourwork.
CHALLENGE
2Usethenumbersinthebox.
18 11 3 5
23 16 10
6 12 4 17
aFind2numberswhosesumis21.______________
bFind2numberswhosesumis29.______________
cFind2numberswhosedifferenceis10.______________
dFind2numberswhosedifferenceis14.______________
eFind4numbersthathavethesmallesttotal.____________________________
Bridges in Mathematics nn 81© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
Adding&SubtractingTens
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80
81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100
1Add.UsetheHundredsGridtohelp.
50 38 45 66 79 53 26 +10 +10 +10 +10 +10 +10 +10 _____ _____ _____ _____ _____ _____ _____
19 21 81 37 40 72 27 +10 +10 +10 +10 +10 +10 +10 _____ _____ _____ _____ _____ _____ _____
2Subtract.UsetheHundredsGridtohelp.
75 55 42 99 87 18 21 –10 –10 –10 –10 –10 –10 –10 _____ _____ _____ _____ _____ _____ _____
47 14 51 39 28 77 94 –10 –10 –10 –10 –10 –10 –10 _____ _____ _____ _____ _____ _____ _____
© The Math Learning Center82 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
Apples&SnowPeople
1Thereare7apples.Everyapplehas5seeds.Howmanyseedsdotheyhaveinall?Showyourwork.
The7appleshave________seedsinall.
CHALLENGE
2Amyandherfriendsaremakingsnowpeople.Theyuse2stonesfortheeyes,5stonesforthemouth,and5stonesforbuttons.Howmanystoneswillittaketomake7snowpeople?Showyourwork.
Itwilltake________stonestomake7snowpeople
Bridges in Mathematics nn 83© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
Half&Half
1Circletheshapethatshowstwohalves.
a b
c d
2Circletheshapesthatshowtwohalves.Thencolorinhalfofeachofthem.
a
b
c
3Color 12 oftheobjectsineachbox.
a b
c d
© The Math Learning Center84 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
SharingStories
1Robhad16shells.Hegavehalfofthemtohisbrother.HowmanyshellsdoesRobhavenow?Showyourwork.
Robhas________shellsnow.
CHALLENGE
2Jesshad28marbles.ShegavehalfofthemtoEli.ThenJessgavehalfofthemarblesshehadlefttohersister.HowmanymarblesdoesJesshavenow?Showyourwork.
Jesshas________marblesnow.
Bridges in Mathematics nn 85© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
MissingNumbers
1Onenumberfromeachfamilyislost!Writethemissingnumberinthetriangle.Usethepicturestohelp.Thenwrite2additionand2subtractionsentencestomatch.
example12
5 7
a
4 8
b15
9
c15
7
2Fillinthemissingnumberstosolvetheseequations.
6+7+3=_______ 8+1+_______=18 5+_______+2=13
13–_______=8 12–_______=7 12–4=_______
CHALLENGE
3Fillinthemissingnumberstosolvetheseequations.
40+18+23=_______ 60+47+_______=126_______+67+26=131
5 + 7 = 127 + 5 = 1212 – 5 = 712 – 7 = 5
© The Math Learning Center86 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
PetShop Equations
1Drawalinetomatcheachproblemwithitsequation.Thenfindtheanswers.
aThepetshopownerhad14hamsters.Shesold5ofthemonMondayand3ofthemonTuesday.Howmanyhamstersdoesshehaveleft?
bTherewere12puppiesinthepen.Thepetshopownersoldsomeofthem.Nowthereare7puppiesinthepen.Howmanypuppiesdidshesell?
cThepetshopownergot9rabbitsyesterday.Afamilycameinandbought2ofthem.Thentheshopownergot8morerabbits.Howmanyrabbitsdoesshehavenow?
dTherewere16fishinthebigtank.Theshopown-ermovedsomeofthem.Nowthereareonly9fishinthebigtank.Howmanydidtheshopownermove?
eTheshopownerhad6kittens.Thenshegotsomemorekittens.Nowshehas13kittens.Howmanykittensdidsheget?
CHALLENGE
2Solvetheseequations.
2+5–4+8=______ 30–20+______=25
8+12+34=______ ______+5=21
20+30–______=30–5 250+48+2=______
90+170+64=______ 14+227–______=227–9
123+48–______=123–5 350+118+6=______
9–2+8=______
14–5–3=______
6+______=13
12–______=7
16–______=9
Bridges in Mathematics nn 87© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
Tens&Ones
1Tellhowmanytensandonesthereareineachsetofbasetenpieces.Thenwriteanequationtoshowthetotal.
example 10’s 1’s
3 6
Equation
30 + 6 = 36
a 10’s 1’s
Equation
b 10’s 1’s
Equation
c 10’s 1’s
Equation
d 10’s 1’s
Equation
2Tellhowmanydimesandpenniesthereareineachbox.Thenwriteanequationtoshowthetotal.
example Dimes Pennies
2 1
Equation
20¢ + 1¢ = 21¢
a Dimes Pennies
Equation
b Dimes Pennies
Equation
c Dimes Pennies
Equation
d Dimes Pennies
Equation
© The Math Learning Center88 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
Nuts&Carrots
1Thesquirrelsarehidingnutsforthewinter.Threeofthesquirrelseachgot4nuts.Fiveofthesquirrelseachgot5nuts.Howmanynutsdotheyhaveinall?Showyourwork.
Thesquirrelsgot_______nutsinall.
CHALLENGE
2Thezookeeperbrought9bunchesofcarrotsfortheelephants.Eachbunchhad5carrots.Hegaveoneoftheelephants24carrots.Howmanycarrotswereleftfortheotherelephants?Showyourwork.
Therewere_______carrotsleftfortheotherelephants.
Bridges in Mathematics nn 89© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
DifferentWaystoLookat300
1Usethepicturestohelpfillinthechart.
aSarabuilt300withmats.
Thereare______hundredsin300.
bHerbrothertradedineachmatfortenstrips.
Thereare______tensin300.
cIfyoutradedinallthestripsforunits,howmanyoneswouldthatbe?
Thereare______onesin300.
2Checktomakesuretherearereally300units.Loopgroupsof10’sindifferentcolors.Thenlabelthegroupsof10.(10,20,30,…)
© The Math Learning Center90 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges,Unit 5, Session 17.
Tellhowmanyhundreds,tens,andonesthereareineachnumber.Usethepic-turestohelp.
example
Thereare______hundredsin280.
Thereare______tensin280.
Thereare______onesin280.
1
Thereare______hundredsin310.
Thereare______tensin310.
Thereare______onesin310.
2
Thereare______hundredsin350.
Thereare______tensin350.
Thereare______onesin350.
3
Thereare______hundredsin230.
Thereare______tensin230.
Thereare______onesin230.
4
Thereare______hundredsin290.
Thereare______tensin290.
Thereare______onesin290.
DifferentWaystoLookattheSameNumber
228
280
Bridges in Mathematics nn 91© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
Time&MoneyProblems
1Solvethesecoinproblems.Youcanusequarters,dimes,nickels,and/orpennies.
aDraw56¢using4coins. bDraw66¢using5coins.
cDraw29¢using5coins. dDraw$1.34using10coins.
2Fillinthecirclenexttothecorrecttime.
a6:156:45 b4:303:30 c2:002:15
3Drawthetwohandsontheclocktoshowthetime.
a6:45 b3:30 c7:15
© The Math Learning Center92 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
Hundreds,Tens&Ones
1Tellhowmanyhundreds,tens,andonesthereareineachnumber.Usethepicturestohelp.
example
Thereare______hundredsin265.
Thereare______tensin265.
Thereare______onesin265.
a
Thereare______hundredsin247.
Thereare______tensin247.
Thereare______onesin247.
b
Thereare______hundredsin318.
Thereare______tensin318.
Thereare______onesin318.
CHALLENGE
2Findthenumberontherightthatmatchesthenumberontheleft.Drawalinetoshow.
a5hundreds+2tens+9ones
b42tens
c30tens+9ones
d3hundreds+49ones
420ones
52tens+9ones
2hundreds+14tens+9ones
1hundred+20tens+9ones
2
26
265
Bridges in Mathematics nn 93© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
Shopping&theNumberBox
1Erikawenttothestore.Shegotapencilfor15¢andatabletfor25¢.Shegavethestorekeeper50¢.Howmuchmoneydidshegetback?Showyourwork.
Erikagot__________back.
CHALLENGE
2Usethenumbersintheboxtosolvetheproblemsbelow.
15 24 6 8 3 17 4 20 32 10
aFind2numberswhosesumis40.___________
bFind2numberswhosesumis18.___________
cFind2othernumberswhosesumis18.____________
dFind2numberswhosedifferenceis12.___________
eFind3numbersthathavethelargesttotal__________________
fWhatisthetotalofthose3numbers?Showyourwork.
© The Math Learning Center94 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
BaseTenAddition
Add.Usethepicturesofbasetenpiecestohelp.
1
28+10_____
2
26+16_____
3
34+17_____
4
25+26_____
5
16+23_____
6
39+14_____
7
23+18_____
8
27+27_____
9
24+15_____
10
16+16_____
Bridges in Mathematics nn 95© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
ShoppingProblems
1Alexwenttothestore.Sheboughtanorangefor25¢,anapplefor24¢,andabananafor23¢.Howmuchmoneydidshespendinall?Showyourwork.
Alexspent__________inall.
CHALLENGE
2Jakehasthreequartersand4nickels.Anapplecosts20¢.HowmanyapplescanJakebuy?Showyourwork.
Jakecanbuy______apples.
© The Math Learning Center96 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
BaseTenSubtraction
Subtract.Usethepicturesofbasetenpiecestohelp.
ex
36–17_____
1
28–12_____
2
37–17_____
3
32–15_____
4
27–19_____
5
39–14_____
6
40–25_____
7
22–8____
8
24–12_____
9
30–15_____
19
Bridges in Mathematics nn 97© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
CoinProblems
1Becketthadaquarterinhisbank.Hismomgavehimanotherquarterforcar-ryinginthegroceries,andhefound2nickelsand3penniesinthecar.Howmuchmoneydidhehaveinall?Showyourwork.
Becketthad_________inall.
CHALLENGE
2Willie,Donald,andMayafoundaquarter,adime,anickel,and2pennieswhentheywerecleaningthehouse.Theytradedtheirdadforsomeothercoinsthatwereworththesameamountofmoneyandsplitupthemoneyevenly.Howmuchdidtheyeachget?Showyourwork.
Willie,Donald,andMayaeachgot_________.
© The Math Learning Center98 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
Adding&SubtractingTens&Nines
1Add.
40 40 55 55 78 78 67 +10 +9 +10 +9 +10 +9 +20 _____ _____ _____ _____ _____ _____ _____
16 16 72 72 24 24 36 +10 +9 +10 +9 +30 +29 +40 _____ _____ _____ _____ _____ _____ _____
2Subtract.
30 30 46 46 81 81 43 –10 –9 –10 –9 –10 –9 –20 _____ _____ _____ _____ _____ _____ _____
35 35 29 29 75 75 68 –10 –9 –10 –9 –10 –9 –40 _____ _____ _____ _____ _____ _____ _____
3Readeachoftheseclockfacesandwritethetimeonthedigitalclock.
a b c d
Bridges in Mathematics nn 99© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
Wheels
1Thereare10bikesand6carsintheschoolparkinglot.Howmanywheelsinall?Showyourwork.
Thereare_______wheelsintheparkinglot.
CHALLENGE
2Bensawsomewagonsandtrikesontheplayground.Inall,hesaw27wheels.Howmanywagonsandhowmanytrikesdidhesee?Therearetwopossibleanswers.Canyoufindbothofthem?Showyourwork.
a
_______wagonsand_______trikes
b
_______wagonsand_______trikes
© The Math Learning Center100 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
PlaceValuePractice
1Readeachnumber.Thenwriteitinexpandedform.
examplefifty-six athirty-two bseventy-five
ceighteen dseventy-four etwenty-eight
fninety-three gforty-five hsixty-seven
2Addthenumbers.
60+8=______ 20+3=______ 50+9=______
70+15=______ 40+17=______ 10+18=______
60+14=______ 50+13=______ 50+19=______
30 60 20 40 80 40 70 +19 +16 +17 +14 +11 +15 +12 ______ ______ ______ ______ ______ ______ ______
3Circlethecorrectanswer.
aThe5in581isinthe onesplacetensplacehundredsplace
bThe5in358isinthe onesplacetensplacehundredsplace
cThe5in205isinthe onesplacetensplacehundredsplace
dThe5in502isinthe onesplacetensplacehundredsplace
56 = 50 + 6
Bridges in Mathematics nn 101© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
PencilPuppy&Pal
1Fillinthebubblenexttothecorrectanswertoeachquestion.
aThenumberonPencilPuppy’sdogtaghasa6inthetensplace.Ithasa4intheonesplace.Whatisthenumberonhertag?
46641467
bThenumberonPal’sdogtaghasa7inthetensplace.Ithasa3intheonesplace.WhatisthenumberonPal’stag?
17373073
2Fillinthecorrectanswer.
aPencilPuppy’shousenumberhasa3inthetensplace.
Ithasa5intheonesplace.
WhatisPencilPuppy’shousenumber?___________
bPal’shousenumberhasa7intheonesplace.
Ithasa4inthetensplace.
WhatisPal’shousenumber?___________
3PencilPuppyhas43pencilsinherhouse.Palhas29pencilsinhishouse.Howmanypencilsdotheyhaveinall?Usenumbers,pictures,and/orwordstosolvetheproblemandexplainyouranswer.
PencilPuppyandPalhave_______pencilsinall.
© The Math Learning Center102 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
2-DigitAddition
1Add.Usethepicturesofbasetenpiecestohelp.
a
36+26_____
b
39+14_____
2WhenPencilPuppydoes2-digitaddition,sheaddsthetensfirst.Next,sheaddstheones.Thensheaddsthetwonumberstogettheanswer.Tryherstrategy.
example
+
30 + 20 = _____
7 + 7 = _____
50 + 14 = _____
Tens Ones
3 7
2 7
a
+
40 + 30 = _____
8 + 4 = _____
70 + 12 = _____
Tens Ones
4 8
3 4
b
+
50 + 20 = _____
8 + 8 = _____
70 + 16 = _____
Tens Ones
5 8
2 8
c
+
20 + 60 = _____
5 + 9 = _____
_____ + _____ = _____
Tens Ones
2 5
6 9
d
+
30 + 50 = _____
4 + 9 = _____
_____ + _____ = _____
Tens Ones
3 4
5 9
e
+
40 + 40 = _____
5 + 6 = _____
_____ + _____ = _____
Tens Ones
4 5
4 6
5014
64
Bridges in Mathematics nn 103© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
MoreFactsThanYouNeed
Sometimesstoryproblemsgiveyoumorefactsthanyouneedtosolvetheprob-lem.Ineachproblembelow,crossoutthefactyoudon’tneed.Thensolvetheproblem.Showyourwork.
1Akikohas27marbles.Sarahas53marbles.Samhas24marbles.HowmanymarblesdoSaraandSamhaveinall?
SaraandSamhave_______marblesinall.
2Jennyhas12toypeople.Sheisbuildingahouseforthem.Sheused12blocksforthefrontgate,and48blocksfortherestofthehouse.HowmanyblocksdidJennyuseinall?
Jennyused_______blocksinall.
3Juanhad56crayons.Hegave23ofhiscrayonstohisfriend.Juanalsogavehisfriend15markingpens.HowmanycrayonsdoesJuanhaveleft?
Juanhas______crayonsleft.
CHALLENGE
4TheToyFactorymade90robotsonTuesday.23peopleworkatthefactory.Theysold54oftherobotsonWednesday.Howmanyrobotsdidtheyhaveleft?
TheToyFactoryhad______robotsleft.
© The Math Learning Center104 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
Numbers&Clocks
1Readeachnumber.Thenwriteitinexpandedform.
example
onehundredthirty-eight
138=_______________
a
threehundredforty-two
342=_______________
b
twohundredseventy-three
273=_______________
c
twohundredtwenty-nine
229=_______________
d
fourhundredsixty-one
461=_______________
e
sixhundredeighteen
618=_______________
f
onehundredfifty-seven
_____=_______________
g
ninehundredninety-nine
_____=_______________
h
eighthundredthirty-five
_____=_______________
2Writethenumbersintheboxinorderonthelinesfromleasttogreatest.
138 342 273 229 461 618
________________________________________________
3Readeachofthesedigitalclocksandshowthetimeontheclockface.
a b c d
100 + 30 + 8
least greatest
Bridges in Mathematics nn 105© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
Sam’sHotDogStand
1Samhasahotdogstandatthemall.Thechartbelowshowshowmanyhotdogshesoldlastweek.Usethecharttohelpanswerthequestionsbelow.
aWhichdaydidSamsellthemosthotdogs?
bWhichdaydidSamsellthefewesthotdogs?
cHowmanyhotdogsdidSamsellonTuesdayandWednesdayputtogether?Showyourwork.
2UseoneofthesignsbelowtocomparethenumberofhotdogsSamsoldondifferentdays.
<lessthan=thesameas>greaterthan
ex125______345 a325______108 b108______119
c234______164 d163______345 e325______234
3Putthenumbersfromthechart(inproblem1)inorderfromleasttogreatestonthelinesbelow.
_____,_____,_____,_____,_____,_____,_____
CHALLENGE
4HowmanyhotdogsdidSamsellaltogether?Showyourwork.
HotDogsSold
DayNumber of Hot Dogs
Monday 119Tuesday 125
Wednesday 163Thursday 108
Friday 234Saturday 345Sunday 325
least greatest
© The Math Learning Center106 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
2-DigitSubtraction
DJHoppermakeshopsonthenumberlinetosolve2-digitsubtractionproblems.Here’showhesolved53–26:• Startat26.• Hopupto30.• Nowhopupto50.• Thenhopupto53andaddupallyourhops.Thattellshowfaritisfrom26to53.
53–26
26 30 50 53
+4 +20 +3
___________________ so 53 – 26 = ______
1 Try DJ’s number line strategy to solve these subtraction problems.
a45–17
2017 40 45
___________________so45–17=______
b54–25
25 30 50 54
___________________so54–25=______
c57–18
18 57
___________________so57–18=______
4 + 20 + 3 = 27 27
Bridges in Mathematics nn 107© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
ThePetGraph
1ThesecondgradersinMs.Nelson’sclassmadeagraphwithpicturestoshowtheirfavoritepets.Eachstudentputonepictureonthegraphtoshowhisorherfavoritepet.Usetheirgraphtohelpanswerthequestionsbelow.
OurFavoritePets
Fish
Birds
Cats
Dogs
aWhichpetdidmostkidslikethebest?_______________
bHowmanymorekidslikedogsthanfishthebest?____________
cHowmanyfewerkidslikebirdsthancatsthebest?_____________
dWriteanumbersentencetoshowhowmanykidsputpicturesonthisgraph.
2ThekidsinMs.Nelson’sclassdidasurveyofallthesecondgradestofindoutaboutkids’favoritepets.Usetheircharttohelpanswerthequestionsbelow.
aHowmanymorekidslikefishthanbirdsthebest?Showyourwork.
bHowmanymorekidslikedogsthancatsthebest?Showyourwork.
2ndGradeFavoritePetsPet Number of KidsFish 17Birds 8Cats 45Dogs 62
© The Math Learning Center108 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
More2-DigitAddition
1Add.Usethepicturesofbasetenpiecestohelp.
a28+13_____
b36+12_____
2Addthenumbers.
70+8=_____40+7=_____30+16=_____20+13=______
3UsePencilPuppy’sstrategyforadding2-digitnumbers.Remember,sheaddsthetensfirst.Thensheaddstheones.Thenshefindsthetotal.
example
+
_____ + _____ = _____
Tens Ones
5 8
2 8
a
+
_____ + _____ = _____
Tens Ones
4 3
3 9
b
+
_____ + _____ = _____
Tens Ones
2 7
4 5
c
+
_____ + _____ = _____
Tens Ones
1 6
2 2
d
+
_____ + _____ = _____
Tens Ones
3 7
5 3
e
+
_____ + _____ = _____
Tens Ones
3 3
5 8
70 16
70 16 86
Bridges in Mathematics nn 109© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
More2-DigitSubtraction
UseDJ’snumberlinestrategytosolvethesesubtractionproblems.
example64–35
35 40 60 64
+5 +20 +4
___________________so64–35=______
160–32
32 40 60
___________________so60–32=______
254–27
27 54
___________________so54–27=______
371–26
26 71
___________________so71–26=______
5 + 20 + 4 = 29 29
© The Math Learning Center110 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
WhichMakestheMostSense?
1Foreachproblembelow,circletheestimateyouthinkisbest.Onthelasttwo,explainwhyyouchosetheestimateyoudid.Hint: Make your own pictures to help.
Problem & Picture Estimate Problem & Picture Estimate
a50
60
70
b30
40
50
c 70
80
90
d 50
60
70
Why? Why?
2Foreachproblembelow,circletheestimateyouthinkisbest.Onthelasttwo,explainwhyyouchosetheestimateyoudid.Hint: Make your own pictures to help.
Problem & Picture Estimate Problem & Picture Estimate
a15
20
25
b30
40
50
c 25
30
35
d 30
40
50
Why? Why?
35+26____
49+39____
37+24____
24+24____
45–29____
50–24____
60–29____
52–18____
Bridges in Mathematics nn 111© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
EstimationProblems
1Dorawenttothemallyesterday.Shegotat-shirtfor$9.99andanewCDfor$6.99.Abouthowmuchmoneydidshespendinall?Circletheestimateyouthinkisbest.
$15.00 $16.00 $17.00 $20.00
2Maxgot$50.00forhisbirthday.Hebought2videogamesfor$14.00each.Abouthowmuchmoneydoeshehaveleft?Circletheestimateyouthinkisbest.
$10.00 $20.00 $30.00 $40.00
3Janelismakingaquilt.Sheneeds100squaresoffabricinall.Shecut29squaresthismorningand39moresquaresthisafternoon.Abouthowmanysquaresdoesshehavelefttocut?Circletheestimateyouthinkisbest.
10squares 20squares 30squares 40squares
4Geraldwantstoread75booksbytheendoftheyear.Sofar,hehasread18fantasybooksand21sciencebooks.Abouthowmanybooksdoeshehavelefttoread?Circletheestimateyouthinkisbest.
15books 25books 35books 45books
5ThesecondgradersatKingSchoolarerecyclingcans.
Day NumberofCansMonday 57Tuesday 98
Wednesday 45Thursday 105
Abouthowmanycanshavetheyrecycledsofar?Circletheestimateyouthinkisbest.
200cans 300cans 400cans 1,000cans
© The Math Learning Center112 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
Adding&SubtractingPractice
1Add. 9 9 10 9 10 9 9 +6 +9 +7 +7 +6 +10 +4 _____ _____ _____ _____ _____ _____ _____
9 10 11 8 4 9 2 +3 +7 +9 +9 +10 +5 +9 _____ _____ _____ _____ _____ _____ _____
20 40 30 60 30 90 80 +9 +12 +8 +15 +17 +8 +14 _____ _____ _____ _____ _____ _____ _____
20 32 58 62 40 70 75 +29 +20 +30 +20 +39 +23 +10 _____ _____ _____ _____ _____ _____ _____
2Subtract.
16 16 13 13 18 18 20 –10 –9 –10 –9 –10 –9 –10 _____ _____ _____ _____ _____ _____ _____
50 40 30 60 70 90 80 –10 –20 –10 –40 –30 –40 –60 _____ _____ _____ _____ _____ _____ _____
26 35 78 64 55 38 58 –10 –10 –20 –30 –40 –20 –20 _____ _____ _____ _____ _____ _____ _____
Bridges in Mathematics nn 113© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
Grandma’sButtonBox
Dylan’sgrandmahasaboxofbuttons.OnedayDylansortedthebuttonsintodiffer-entgroupsandcountedhowmanyineachgroup.Hemadeacharttoshowhiswork.
1HelpDylanmakeabargraphtoshowhiswork.Givethegraphatitleandcolorinthecolumnstoshowhowmanybuttonsofeachcolorhefound.
Red
Gol
d
Whi
te
Blue
Purp
le
Blac
k
Button Color
KindofButton HowMany
Red 14
Gold 25
White 26
Blue 10
Purple 5
Black 22
2Howmanybuttonswereintheboxaltogether?Showyourwork.
Therewere_______buttonsintheboxaltogether.
Num
ber
of
Butt
ons
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Title _________________________________
© The Math Learning Center114 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
2-DigitAdditionPractice
1Add.Usethepicturesofbasetenpiecestohelp.
a b
2Addthenumbers.
21+8=______42+7=______32+16=______24+13=______
3UsePencilPuppy’sstrategyforadding2-digitnumbers.Remember,sheaddsthetensfirst.Thensheaddstheones.Thenshefindsthetotal.
example
+
_____ + _____ = _____
Tens Ones
3 7
3 4
a
+
_____ + _____ = _____
Tens Ones
3 5
2 8
b
+
_____ + _____ = _____
Tens Ones
6 3
2 8
c
+
_____ + _____ = _____
Tens Ones
4 4
2 9
d
+
_____ + _____ = _____
Tens Ones
4 5
5 2
e
+
_____ + _____ = _____
Tens Ones
2 8
3 9
17+25____
24+36____
60 11
60 11 71
Bridges in Mathematics nn 115© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
Lines&Buttons
1aTamiisstandinginline.Thereare3childreninfrontofher.Thereare8chil-drenbehindher.Howmanychildrenarestandinginline?Showyourwork.
bThereare_____childrenstandinginline.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Makeachart.Writeanumbersentence.Other
CHALLENGE
2aFrank’smomgavehim8buttons.Thebuttonshave22holesinall.Howmanyofthe8buttonshave4holes?Howmanyofthe8buttonshave2holes?Showyourwork.
b_____ofthe8buttonshave4holes._____ofthe8buttonshave2holes.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Makeachart.Writeanumbersentence.Other
© The Math Learning Center116 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
Time&Money
1Readeachoftheseclockfacesandwritethetimeonthedigitalclock.
a b c d
2Countthemoneyineachsetandcirclethecorrectamount.
a
36¢58¢66¢76¢
b
40¢90¢
$1.00$1.15
3Circleallthecorrectvaluesforeachsetofcoins.
a2quarters2nickels
50¢$0.50
halfadollar
b30¢
$0.2525¢
3dimes$0.15
Bridges in Mathematics nn 117© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
Cubes&Homework
1aEbonyput10cubesintotwostacks.Onestackhas4morecubesthantheotherstack.Howmanycubesareineachstack?Showyourwork.
bThereare______cubesinonestackand______cubesintheotherstack.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Actitoutwithcubes.Makealist.Other
CHALLENGE
2aJosehasabagofmarbles.Thereare8redmarblesinthebag.Therearetwiceasmanygreenmarblesasredmarbles.Thereare2fewerbluemarblesthangreenmarbles.Therearehalfasmanywhitemarblesasbluemarbles.Howmanymarblesareinthebag?Showyourwork.
bThereare________marblesinthebag.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Actitoutwithcubes.Makealist.Other
© The Math Learning Center118 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
MorePlaceValuePractice
1Countby10’s,eitherforwardorbackward,tofillinthemissingnumbers.
a10,20,30,40,_____,_____,_____,80,_____,100,110,_____,_____
b280,270,260,_____,_____,230,_____,_____,200,_____,_____
c203,213,223,_____,_____,253,_____,_____,_____,293,_____
d567,557,547,537,_____,_____,507,_____,487,_____,467
2Countby100’s,eitherforwardorbackward,tofillinthemissingnumbers.
a100,200,300,________,________,________,700,________,________
b950,850,750,________,________,________,350,________,________
c203,303,403,________,________,________,803,________,1003
d914,814,714,________,________,414,________,________,________
3Addthenumbers.
400+70+2=________ 600+20+8=________
800+50+5=________ 100+10+3=________
200 300 700 200 400 100 90050 80 40 60 40 10 90
+9 +1 +2 +0 +4 +7 +9 ______ ______ ______ ______ ______ ______ ______
4Circletheanswerineachofthequestionsbelow.
aThe3in359isinthe onesplacetensplacehundredsplace
bThe4in904isinthe onesplacetensplacehundredsplace
cThe5in256isinthe onesplacetensplacehundredsplace
Bridges in Mathematics nn 119© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
Homework&100
1Jamalisdoinghismathhomework.Hejustgot24forananswer.Whatwasthequestion?Writedownatleast3differentideasbelow.
CHALLENGE
2Writeatleast10differentequationsfor120.Youcanuseaddition,subtraction,multiplication,ordivision.
© The Math Learning Center120 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
2-DigitSubtractionPractice
DJlikestomakehopsonthenumberlinetosolve2-digitsubtractionproblems,likethis:
54–25
25 30 50 54
+5 +20 +4
___________________so54–25=_______
1Solveeachofthesubtractionproblemsbelow.YoucanuseDJ’snumberlinestrategyorsomeotherwaytosolvetheproblem.Showyourworkeachtime.
a56–29
___________________so56–29=_______
b70–36
___________________so70–36=_______
c63–19
___________________so63–19=_______
5 + 20 + 4 = 29 29
Bridges in Mathematics nn 121© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
MakeYourOwnProblems
Fillintheblankswithwordsthatmakesenseandseeminteresting.Solveeachproblem.Showyourwork.
Fill in the blanks. Work Space
1Kendrahas57_____________inhertopdrawer.
Shehas28____________inherbottomdrawer.
Howmanyarethereinall?_________________
2Linspent39dollarsfora_________________.
Hespent18dollarsfora___________________.
Howmuchdidhespendinall?______________
3Akikohad72___________________________.
Shegave26ofthemtoherfriend.
Howmanydoesshehaveleft?______________
4Mr.Smithbaked48_____________________.
Thedoggot19ofthem.
Howmanyareleft?_______________________
5Franksaw51__________________________.
24ofthemflewaway.
Howmanywereleft?_____________________
© The Math Learning Center122 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
SolvingEquations
1Fillinthemissingnumbers.
a15=_____+7 b5+_____=13
c14–_____=8 d16–_____=7
e9+6=_____+8
f12–5=4+_____ g13–7=3+_____
2Fillinthemissingnumbers.
40+50=_____ 30+_____=60 _____+70=90
25+35=_____ 25+_____=50 _____+40=85
80–40=_____ 70–_____=20 _____–30=30
95–40=_____ 55–_____=35 _____–25=25
CHALLENGE
3Fillinthemissingnumbers.
250=_____+6 90+70=_____+17 140–60=30+_____
Bridges in Mathematics nn 123© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
Apples&OrangeSlices
1Thereare4basketsonthetable.Eachbaskethas12applesinit.Howmanyapplesarethereinall?Showyourwork.Marktheanswerclearly.
Thereare_______apples.
CHALLENGE
2Thereare4platesonthetable.Eachplatehas12orangeslicesonit.Eachorangeslicehas3seeds.Howmanyseedsinall?Showyourwork.Marktheanswerclearly.
Thereare_______seeds.
© The Math Learning Center124 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
TheSecondGradersCleanTheirDesks
OnFridayafternoon,Mrs.Nelsonaskedhersecondgraderstocleantheirdesks.Thischartshowstheextrathingsthekidsfoundintheirdesks.
1Finishthegraphontheright.Giveitatitle.Colorinthecolumnstoshowwhatthekidsfoundintheirdesks.
Number ExtraThings44 Extra pencils18 Extra pairs of scissors12 Extra glue sticks15 Extra erasers9 Overdue library books
2Howmanymorepencilsthaneras-ersdidthekidsfind?Showyourwork.
CHALLENGE
3Howmanyextrathingsdidtheyfindinall?Showyourwork.
Penc
ils
Scis
sors
Glu
e St
icks
Eras
ers
Boo
ks
Extra Things
45
42
39
36
33
30
27
24
21
18
15
12
9
6
3
0
Title _________________________________
Num
ber
of
Extr
a Th
ings
Bridges in Mathematics nn 125© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
MeasuringProblems
1aHereare2lines.Putanxontheoneyouthinkisshorter.
bMeasureeachline.Usethecentimetersideofyourruler.
LineAis_______centimeterslong.
LineBis_______centimeterslong.
cWhichlineisshorter?(Circleone.) LineA LineB
dHowmuchshorterisit?Showyourwork.Marktheanswerclearly.
2aHereare2crookedlines.Putanxontheoneyouthinkislonger.
bMeasureeachcrookedline.Usethecentimetersideofyourruler.
CrookedlineCis________centimeterslong.
CrookedlineDis________centimeterslong.
cWhichcrookedlineislonger?(Circleone.)
CrookedLineCCrookedLineD
dHowmuchlongerisit?Showyourwork.Marktheanswerclearly.
A
B
C D
© The Math Learning Center126 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
Fractions
1Whatpartofeachrectangleiscolored?Circlethecorrectfraction.
a
13
34
22
12
b
14
36
24
13
c
23
13
12
34
d
34
54
24
33
2Readeachfractionandcolorinthatpartoftheshape.
a
24
b
34
c
16
d
36
Bridges in Mathematics nn 127© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
TheArmyAntsMeasureUp
Hi!Iamaworkerarmyant.Iamonecentimeterlong.
My10armyantfriendsmakealinethatis10centimeters,or1decimeterlong.
1Listfourdifferentthingsonyouorinyourdeskthatareaboutthesamelengthasadecimeter.
2Useyourrulertohelpdrawalinebelowthatisexactly15centimeterslong.Howmanyofusarmyantscouldstandonyourline?
3100ofmyarmyantfriendswouldmakealinethatis100centimeters,or1meterlong.That’saboutthesameasthedistancebetweenthefloorandthedoor-knobofyourclassroomdoor.
Listfourdifferentthingsinyourclassroomthatareaboutthesamelengthasameter.
× 100
© The Math Learning Center128 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
PlaceValueReview
1Circletheplacevalueoftheunderlineddigit.Thenwriteitsvalue.
Number Place Value Value Number Place Value Value
exa
238
onestens
hundreds
exb
109
onestens
hundreds
a
743
onestens
hundreds
b
253
onestens
hundreds
c
150
onestens
hundreds
d
608
onestens
hundreds
2Writeoneofthesesignsoneachlinetomakethesentencetrue.
<lessthan=thesameas>greaterthan
ex456_____546 a85_____58 b327_____372 c106_____610
d218_____218 e735_____573 f204_____240 g483_____438
3Fillinthemissingdigitstomakeeachstatementtrue.Thereismorethanonerightanswerforeachone.
ex
3___7<347
a
235>___35
b
307<___07
c
135<13___
d
4___3>463
e
1___9<139
f
182>1___2
g
514<51___
<
2
30 9
Bridges in Mathematics nn 129© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
MoreaboutMeters
Ameterisaboutthesameasthedistancebetweenthefloorandthedoorknobofyourclassroomdoor.Lookatthedoorinyourclassroom,orameterstickifyouhaveone.Nowthinkabouthowlong20meterswouldbe,andanswerthesequestions:
1Ifyouwalkedacrossyourclassroomthelongway,wouldyougomoreorlessthan20meters?
2Isitmoreorlessthan20metersfromyourclassroomdoortotheofficedoor?
3Howlongwouldittakeyoutorun20meters?Circletheanswerthatmakesthemostsense.
10seconds10minutes10hours
4Listatleast2differentanimalsthatmighttake10minutestotravel20meters.
5Whichunitwouldyouusetomeasurethelengthofasoccerfield?(Circleone.)
centimetersmetersinchesmiles
6Whichunitwouldyouusetomeasurethelengthofacrayon?(Circleone.)
centimetersmetersfeetmiles
CHALLENGE
7Thecircumference,ordistancearound,asoccerballis68centimeters.Isthatlongerorshorterthanonemeter?Byhowmuch?Showyourwork.
1 meter
© The Math Learning Center130 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
Adding&Subtracting
1Addthenumbers.
80 30 44 50 70 51 60 +6 +43 +24 +38 +7 +17 +16 ____ ____ ____ ____ ____ ____ ____
370 120 890 360 340 430 125 +8+6+4+15+50+27+25 ____ ____ ____ ____ ____ ____ ____
2Usepictures,numbers,and/orwordstoaddthenumbersineachbox.Showallyourwork.
a36+55 b129+133
3 Subtract the numbers.
86 39 48 56 35 55 50 – 6 – 9 – 7 – 5 – 15 – 25 – 25 ____ ____ ____ ____ ____ ____ ____
4 Use pictures, numbers, and/or words to subtract the numbers in the box. Showall your work.
51–26
Bridges in Mathematics nn 131© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
Crayons
64248
Small 79¢ Medium 99¢ Large $1.50
Youcangetboxesofcrayonsin3differentsizesatthestore.Usethepicturesabovetohelpsolvetheseproblems.
1Ernieboughtasmallboxofcrayons.Hegavetheclerka$1.00bill.Howmuchmoneydidhegetback?Showyourwork.Marktheanswerclearly.
2Emmawantstogetamediumboxofcrayonsforhersisterandalargeboxofcrayonsforherself.Howmanycrayonswillthatbeinall?Showyourwork.Marktheanswerclearly.
3Emmaonlyhas$2.00inherpocket.Isthatenoughmoneytobuyamediumandalargeboxofcrayons?Explainyouranswer.
© The Math Learning Center132 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
Pedro’sBirthday
Pedro’sbirthdayisonApril30.Usethecalendartohelpsolvetheproblemsbelow.
AprilSun. Mon. Tues. Wed. Thurs. Fri. Sat.
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30
1WhatdayoftheweekisPedro’sbirthdaythisyear?
2Earlyinthemonth,Pedrosaid,“Mom,guesswhat?It’sonly27moredaysuntilmybirthday!”
aWhatwasthedateonthatday?
bExplainyouranswer.
3OnApril9th,Pedrosaid,“Nowit’sonly3moreweeksuntilmybirthday.”Howmanydaysaretherein3weeks?Showyourwork.
4OnApril______,Pedrosaid,“Nowit’sonly3moredaysuntilmybirthday.”Howmanyhoursaretherein3days?Showyourwork.
5aOnApril30,Pedrosaid,“Mypartystartsat12:30.It’s9:30now!”HowmanyhoursisituntilPedro’sparty?
bHowmanyminutesaretherein3hours?Showyourwork.
Bridges in Mathematics nn 133© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
MoreCrayonProblems
64248
Small 79¢ Medium 99¢ Large $1.50
Youcangetboxesofcrayonsin3differentsizesatthestore.Usethepicturesabovetohelpsolvetheseproblems.
1Samboughttwosmallboxesofcrayons.Hegavetheclerk$2.00.Howmuchchangedidheget?Showyourwork.
CHALLENGE
2Ms.Fernandezbought10mediumboxesofcrayonsforhersecondgraders.Thensheboughtalargeboxofcrayonsforherself.Shegavetheclerka$20bill.Howmuchchangedidsheget?Showyourwork.
© The Math Learning Center134 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
Digits&NumberRiddles
1Tellwhatdigitisineachplace.
a289
____isinthetensplace.
____isintheonesplace.
____isinthehundredsplace.
b945
____isintheonesplace.
____isinthehundredsplace.
____isinthetensplace.
c316
____isinthetensplace.
____isinthehundredsplace.
____isintheonesplace.
d405
____isintheonesplace.
____isinthetensplace.
____isinthehundredsplace.
e5,687
____isinthetensplace.
____isintheonesplace.
____isinthethousandsplace.
____isinthehundredsplace.
f4,301
____isintheonesplace.
____isinthehundredsplace.
____isinthetensplace.
____isinthethousandsplace.
CHALLENGE
2Solvethesenumberriddles.
a Ihavea4inthetensplace.• Ihavea1inthehundredsplace.• Thenumberinmyonesplaceis
morethan6andlessthan9.• Iamanoddnumber.
WhatnumberamI?
bIhavea7inthehundredsplace.• Ihavea0inthetensplace.• Ihavea3inthethousandsplace.• Thenumberinmyonesplaceisless
than3.• Iamanevennumber.
WhatnumberamI?
Bridges in Mathematics nn 135© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
TheToyStore
Toy Store Price List (prices include tax)
Doll $8.00 Skates $29.00 Puppet $6.00 Soccer Ball $13.00
1Ezragot$50.00forhisbirthday.Heboughtasoccerballatthetoystore.Howmuchmoneydidhehaveleft?Showyourwork.Marktheanswerclearly.
CHALLENGE
2Mayawentintothetoystorewith$50.00.Shebought3differenttoysandgot$2.00backinchange.Whichthreetoysdidshebuy?Showyourwork.Marktheanswerclearly.
© The Math Learning Center136 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
EnoughTimeintheDay
1Drawalinefromeachdigitalclocktothematchingtimeontheclockface.
a b c d
2It’s8:20andHenry’sbigsisterisreadyforschool.Herbusleavesat8:35.Howmuchtimedoesshehavetogettothebusstop?(Circleone.)
10seconds10minutes15minutes20minutes
3Henryisinsecondgrade.Hisschoolstartsat8:15.Hehaslunchat12:15.Howmanyhoursaretherebetweenstartingtimeandlunchtime?
4Thereare60minutesinanhour.Howmanyminutesaretherein4hours?Showyourwork.
Bridges in Mathematics nn 137© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
MoreToyStoreProblems
Toy Store Price List (prices include tax)
Frisbee $3.50 Hat $4.99 Ball $4.50 Yo-yo $5.00 Kite $2.99
1Lanihastwinbrothers.Theirbirthdayistomorrow.Laniboughtahatforoneoftheboysandakitefortheother.Howmuchdidshespendinall?Showyourwork.
Lanispent_____________inall.
CHALLENGE
2Samishavingabirthdayparty.Sam’sdadboughtakiteforeachofthekidscom-ingtotheparty.Hespent$14.95.HowmanykidsdidSaminvite?Showyourwork.
Saminvited_____________kids.
© The Math Learning Center138 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
MoreFractions
1Whatpartofeachsetofcirclesiscolored?Circlethecorrectfraction.
a
14
22
24
13
b
34
32
23
13
c
34
44
43
13
d
33
13
46
12
2Followthedirectionstocompleteeachpictureandthenfillinthefraction.
aColor 16 ofthehexagonyellow.
•Color 26 ofthehexagonpurple.
•Colortherestofthehexagongreen.
•Writeafractionbelowtoshowwhatpartofthehexagonisgreen.
bColor 24 ofthesquarered.
•Color 14 ofthesquareblue.
•Colortherestofthesquarebrown.
•Writeafractionbelowtoshowwhatpartofthesquareisbrown.
Bridges in Mathematics nn 139© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
Pizza Problems
DavidandSaraeachgotamini-pizzaexactlythesamesize.Davidcuthispizzainto4equalpieces.Saracutherpizzainto6equalpieces.
1Whohadbiggerpieces?Drawonthecirclesbelowtohelpsolvethisproblem.
__________________ hadbiggerpieces.
CHALLENGE
2Davidate3ofhispieces.Sarahate4ofherpieces.Whoatemorepizza?Usepictures,numbers,and/orwordstoexplainyouranswer.
____________________ atemorepizza.
© The Math Learning Center140 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
Reading&WritingNumbers
1Readeachnumber.Thenwriteitinexpandedform.
examplefourhundredfifteen atwohundredeighty-six
bsevenhundredfifty-three csixhundredtwenty-one
dthreehundredforty-seven eninehundredseventeen
fonehundredsixty geighthundredfour
2Addthenumbers.
500+20+8=_______ 200+20+2=_______ 100+70+1=_______
700+10+9=_______ 800+40+7=_______ 500+3=_______
200 300 200 400 900 300 40090 10 20 50 90 40 10
+1 +9 +6 +2 +9 +1 +8 _____ _____ _____ _____ _____ _____ _____
3Circlethenumberthathasthesamevalueastheexpandedform.
a300+6
36336306316
b200+10+7
207217271721
415 = 400 + 10 + 5
Bridges in Mathematics nn 141© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
HowLongIsaShark?
Therearemanydifferenttypesofsharks.Somearelongerthanothers.Thischartshowshowlongsomeofthedifferentsharksare.Useittohelpanswerthequestionsbelow.
SharkLengthsSharkName AverageLength(incentimeters)*White Shark 204 centimeters
Bignose Shark 174 centimetersNight Shark 154 centimeters
Bigeye Thresher Shark 312 centimetersTiger Shark 247 centimeters
Thresher Shark 373 centimeters
1Whichsharkonthechartisthelongest?_______________________________
2Whichsharkonthechartistheshortest?_______________________________
3Writeoneofthesesymbolsoneachblanktomakethesentencetrue.
<lessthan=thesameas>greaterthan
aLengthofaTigerShark_______LengthofaWhiteShark
bLengthofaBignoseShark_______LengthofaTigerShark
4Putthelengthsofthesharksinorderfromleasttogreatest.
__________,__________,__________,__________,__________,__________
least greatest
5HowmuchlongerisaThresherSharkthanaTigerShark?Showyourwork.Marktheanswerclearly.
*Source:http://na.nefsc.noaa.gov/sharks/
© The Math Learning Center142 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
Addition&SubtractionPractice
1Addthenumbers.
40 20 57 50 75 34 35 +3 +38 +31 +16 +25 +34 +35 _____ _____ _____ _____ _____ _____ _____
290 340 562 225 325 325 450 +9 +20 +35 +15+25+26+50 _____ _____ _____ _____ _____ _____ _____
2Usepictures,numbers,and/orwordstoaddthenumbersineachbox.Showallyourwork.
a47+47 b148+122
3Subtractthenumbers.
49 50 67 50 45 30 100 –9 –10 –23 –25 –15 –15 –75 _____ _____ _____ _____ _____ _____ _____
4Chooseoneoftheproblemsinthebox.Circleit.Thensolveit.Usepictures,numbers,and/orwordstohelp.Showallyourwork.
35–1550–2583–49123–99
Bridges in Mathematics nn 143© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
MariaJose’sDay
MariaJoseisinsecondgrade.ThechartbelowshowssomeofthethingsshedoeseveryTuesday,andwhenshedoesthem.FinishthechartbycirclingA.M.orP.M.foreachtimeanddrawingthehandsontheclockfaces.
Hint A.M. means times in the morning between midnight and noon. P.M. means times in the afternoon and evening between noon and midnight.
Event Time A.M. or P.M. Clock
aBreakfast
7:05A.M.
P.M.
bArriveatSchool
8:15A.M.
P.M.
cLunch
11:55A.M.
P.M.
dSoccerPractice
4:10A.M.
P.M.
eDinner
6:30A.M.
P.M.
© The Math Learning Center144 nn Bridges in Mathematics
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
MoreNumberPatterns
1Fillinthemissingnumbersintheseskip-countingpatterns.
a15,25,35,_____,55,_____,75,_____,_____,_____,115,125
b6,12,18,_____,_____,36,_____,_____,_____,60,66,_____
c105,110,115,_____,_____,130,_____,_____,145,_____,155
d13,113,213,_____,413_____,613,_____,_____,_____
2DJandHopperarejumpingfromstonetostonetogetacrossthestream.Thereareninestonesinall.Thereisexactly1footbetweeneachstone,andthereare12inchesinafoot.Finishthetablebelowtoseehowmanyinchesthefrogshavetojumptogetallthewayacrossthestream.
Feet 1 2 3 4 5 6 7 8 9
Inches 12 24 60
CHALLENGE
3ThepathfromDJ’shousetothestreamis27feetlong.Thereare3feetinayard.HowmanyyardsisitfromDJ’shousetothestream?Showyourwork.
Bridges in Mathematics nn 145© The Math Learning Center
NAME DATE
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
Breanna’sPockets
1Breannahasapairofshortswith4pockets.Shehasmoneyineachpocket.Finishthechartbelowtoseehowmuch.
Pocket Quarters Dimes Nickels Pennies Total
a 2 2 1 2
b 1 0 5 9
c 3 0 1 3
d 0 4 3 1
2InwhichpocketdoesBreannahavethemostmoney?__________
3InwhichpocketdoesBreannahavetheleastmoney?__________
4Breannawantstobuyatoyfor$3.00.Shethinksshehasenoughmoneyinherpockets.Doyouagree?Explainyouranswer.
5HowmuchmoneydoesBreannareallyhaveinher4pockets?Showyourwork.
CHALLENGE
6Breannabought3pencilsattheschoolstore.Theyeachcost29¢.Howmuchmoneydidshehaveleftinherpocketsaftershepaidforthepencils?Showyourwork.
77¢
© The Math Learning Center146 nn Bridges in Mathematics
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