1 MNLAEPB588155 C03SH - Natomas Unified School District · Write two addition sentences you ... Circlehe t part you take from the group. Cross it out. ... Check children’s answers

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Chapter 3 thirty-nine P39

Chapter

3

Dear Family,My class started Chapter 3 this week. In this chapter, I will learn about addition strategies such as counting on, adding doubles, and adding in any order.

Love,

Vocabulary

doubles Two equal groups make a doubles fact.

2 + 2 = 4

doubles plus one 2 + 2 = 4, so 2 + 3 is 1 more, or 5.

2 + 3 = 5

Home Activity

Have your child find objects that show doubles facts. For example, he or she may find a pair of shoes to show 1 + 1, a carton of eggs to show 6 + 6, or a six-pack of juice cans to show 3 + 3. Ask your child to say those doubles facts.

Add another item to one of the groups, and have your child name the doubles plus one fact.

LiteratureLook for these books in a library. Point out examples of doubles and counting on facts in the pictures.

12 Ways to Get to 11by Eve Merriam.Aladdin, 1996.

Two of Everything: A Chinese Folktaleby Lily Toy Hong. Albert Whitman and Company, 1993.

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P40 forty

12 Ways to Get to 11por Eve Merriam. Aladdin, 1996.

LiteraturaBusque estos libros en una biblioteca. Señale ejemplos de operaciones de dobles y de contar uno hacia delante en las imágenes.

Actividad para la casa

Pida a su hijo que encuentre objetos que muestren operaciones de dobles. Por ejemplo, puede hallar un par de zapatos para mostrar 1 + 1, una caja de huevos para mostrar 6 + 6 o una caja de 6 latas de jugo para mostrar 3 + 3. Pídale a su hijo que le diga cuáles son las operaciones de dobles.

Agregue otro artículo a uno de los grupos y pida a su hijo que nombre la operación de dobles más uno.

Vocabulario

dobles Dos grupos iguales forman una operación de dobles.

2 + 2 = 4

dobles más uno 2 + 2 = 4, por lo tanto 2 + 3 es 1 más o 5.

2 + 3 = 5

Querida familia:Mi clase comenzó el Capítulo 3 esta semana. En este capítulo, aprenderé estrategias de suma como contar hacia adelante, sumar dobles y sumar en cualquier orden.

Con cariño,

Capítulo

3

Two of Everything: A Chinese Folktalepor Lily Toy Hong.Albert Whitman and Company, 1993.

Problem SolvingProblem Solving

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Name Lesson 3.1

Chapter 3 forty-one P41

Algebra • Add in Any Order

Add. Change the order of the addends. Add again.

1. 2. 3.

4. 5. 6.

6 + 5

]

11

6 + 3

]

9

9 + 8

]

17

8 + 1

]

9

4 + 7

]

11

7 + 3

]

10

B

8

+ B

9

_

B

17

B

5

+ B

6

_

B

11

B

3

+ B

6

_

B

9

B

1

+ B

8

_

B

9

B

7

+ B

4

_

B

11

B

3

+ B

7

_

B

10

5 — 1 4 — 5 9 —

4 — 1 5 — 5 9 —

Write two addition sentences you can use to solve the problem.

7. Camila has 5 pennies.Then she finds 4 more pennies. How many pennies does she have now?

COMMON CORE STANDARD—1.OA.3 Understand and apply properties of operations and the relationship between addition and subtraction.

Order may vary.

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P42 forty-two

1. What is another way to write 7 + 6 = 13?

6 + 7 = 13 —

2. What is another way to write 6 + 8 = 14?

8 + 6 = 14 —

Spiral Review (1.OA.1, 1.OA.6)

3. What is the sum? Write the number.

4. How many nests are there? Write the number.

2 nests and 1 more nest 3 — nests

Lesson Check (1.OA.3)

4 + 3

_

7


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Count On

Circle the greater addend. Count on to find the sum.

Lesson 3.2

Chapter 3 forty-three P43

1. 2. 1 + 7

]

8

3. 3 + 9

]

12

4. 5 + 3

]

8

5. 7 + 3

]

10

6. 3 + 4

]

7

7. 6 + 2

]

8

8. 1 + 8

]

9

8 + 2

]

10

Draw to solve.Write the addition sentence.

9. Jon eats 6 crackers.Then he eats 3 more crackers. How many crackers does he eat?

6 — + 3 — = 9 — crackers

COMMON CORE STANDARD—1.OA.5 Add and subtract within 20.

Possible drawing is shown. Order of the addends may vary.

6 7 8 9

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P44 forty-four


1. Count on to solve 5 + 2.

Write the sum.

7 —

2. Count on to solve 1 + 9.

Write the sum.

10 —

Spiral Review (1.OA.1)

3. What does the model show?

3 — + 3 — = 6 —

4. 4 ducks swim in the pond. 2 more ducks join them. How many ducks are in the pond now?

Complete the model and the number sentence.

4 + 2 = 6 —

6

24


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yHANDS ONLesson 3.3

Chapter 3 forty-five P45

Write a doubles fact to solve.

7. There are 16 crayons in the box.Some are green and some are red. The number of green crayons is the same as the number of red crayons.

16 — = 8 — + 8 —

Add Doubles

Use . Draw to show your work.Write the sum.

1. 4 + 4

]

8

2. 6 + 6

]

12

3. 3 + 3

]

6

4. 8 + 8

]

16

5. 5 + 5

]

10

6. 7 + 7

]

14


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P46 forty-six


1. Writeadoublesfactwiththesumof18.

9        — +    9        — = 18

2. Writeadoublesfactwiththesumof12.

6—+ 6—=12


3. Whatisthesumof3and2?

Drawthe .Writethesum.

3—+ 2—= 5—

4.Drawcirclestoshowthenumbers.

Writethesum.

4 + 0= 4—

Check children’s drawing. Drawing

should show 3 cubes and 2 cubes.

DO NOT EDIT--Changes must be made through “File info” CorrectionKey=B


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yHANDS ONLesson 3.4

Chapter 3 forty-seven P47

Solve. Draw or write to explain.

9. Bo has 6 toys. Mia has 7 toys. How many toys do they have?

13 — toys

Use Doubles to Add

Use . Make doubles. Add.

1.

5 + 6

5 — 1 5 — 1 1 —

So, 5 + 6 = 11 — .

2.

9 + 8

1 — 1 8 — 1 8 —

So, 9 + 8 = 17 — .

3. 8 + 7 = 15 — 4. 6 + 5 = 11 — 5. 7 + 6 = 13 —

6. 4 + 5 = 9 — 7. 7 + 8 = 15 — 8. 8 + 9 = 17 —

Use doubles to help you add.


7

25

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P48 forty-eight


1. Usedoublestofindthesumof7+8.

Writethenumbersentence.

7 —+ 7 —+ 1 —=15 —


2. Circlethepartyoutakefromthegroup.Crossitout.Thenwritethedifference.

8−6= 2 —

3. Thereare7graykittens.2kittensareblack.Howmanyfewerblackkittensaretherethangraykittens?

Usethebarmodeltosolve.

Thenwritethenumbersentence.

7 —− 2 —= 5 —



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yHANDS ONLesson 3.5

Chapter 3 forty-nine P49

1. 7 + 8 = 15 — 2. 6 + 7 = 13 —

3. 4 + 3 = 7 — 4. 2 + 1 = 3 —

5. 8 + 9 = 17 — 6. 3 + 2 = 5 —

7. 5 + 6 = 11 — 8. 5 + 4 = 9 —

9. Andy writes an addition fact. One addend is 9. The sum is 17. What is the other addend? Write the addition fact.

9 — + 8 — = 17

Doubles Plus 1 and Doubles Minus 1

Add. Write the doubles fact you used to solve the problem.

— C— C—

— C— C—

— C— C—

— C— C—

— C— C—

— C— C—

— C— C—

— C— C—


Doubles fact used will vary.

9 + 8 = 17or

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P50 fifty


1. Use the picture. Write a doubles plus one number sentence.

2 — + 2 — + 1 —

2. Which doubles fact helps you solve 8 + 7 = 15? Write the number sentence.

7 — + 7 — + 1 —


3. There are 7 large dogs and 2 small dogs. How many dogs are there?

Use to solve. Draw to show your work. Write the number sentence and how many.

9 — dogs 7 — + 2 — = 9 —

4. What is the sum of 2 and 1 more?Draw the . Write the sum.

3 — 2 + 1 = 3 —

Doubles fact used will vary.

Check children’s drawings. Drawing should show 2 cubes and 1 cube.


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yLesson 3.6

Chapter 3 fifty-one P51

1. 8 + 8 = 16 — 2. 8 + 1 = 9 — 3. 1 + 7 = 8 —

4. 8 + 3 = 11 — 5. 5 + 5 = 10 — 6. 8 + 7 = 15 —

7. 8 + 9 = 17 — 8. 6 + 3 = 9 — 9. 6 + 6 = 12 —

10. 2 + 5 = 7 — 11. 7 + 6 = 13 — 12. 5 + 4 = 9 —

Practice the Strategies

Add. Color doubles facts . Color count on facts . Color doubles plus one or doubles minus one facts .

Make a counting on problem. Write the missing numbers.

13. 7 — apples are in a bag. 3 — more apples are put in the bag.How many apples are in the bag now?

10 — apples


red

red

redyellow

blue

blue

blue

blue

blue

yellow

yellowyellow

Answers will vary, but one addend should be 1, 2, or 3.

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P52 fifty-two


1. Whichstrategywouldyouusetofind2+8?Explainhowyoudecided.

———————

———————

2. Whatisthesumof9+9?Writethenumber.

18        —


3. Whatisthesumof5+2or2+5?Whyisthesumthesame?

———————

———————

4. Howmanyflowersarethere?

Writethenumber.

3flowers and 3moreflowers 6—flowers

Count on. Possible explanation: When I add 2 to 8,

I can count on, 9, 10.

7; Possible explanation: The addends are the same.

Only the order is different.



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yHANDS ONLesson 3.7

Chapter 3 fifty-three P53

Draw red and yellow to solve.Write the addition sentence.

5. Linda has 10 toy cars. She gets 6 more cars. How many toy cars does she have now?

10 — + 6 — = 16 — toy cars

1. 10 + 7

_

17

2.

10 + 5

_

15

3. 10 + 9

_

19

4.

10 + 4

_

14

Add 10 and More

Draw red to show 10. Draw

yellow to show the other addend. Write the sum.


R R R R R

R R R R R

Y Y

Y Y

Y Y Y

R R R R R

R R R

Y Y Y Y

Y Y Y Y

Y

R R

R R R R R

R R R R R

Y Y Y Y Y

R R R R R

R R R R R

Y Y

Y

Y Y Y

R R R R R

R R R R R

Y Y Y Y

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P54 fifty-four


1. Drawmore toshowtheadditionfact.Thensolve.

10 1 3

 

_

2. Whatnumbersentencedoesthismodelshow?Writethenumbersentence.

10 —+ 8 —= 18 —


3. Showthreedifferentwaystomake10.Writethenumbersentences.

  10 =               — +               —   10 =               — +               —  10 =               — +               —

4. Thereare3largeturtlesand1smallturtle.Howmanyturtlesarethere?Writethenumbersentenceandhowmany.

     4 —turtles 3 —   + 1 — = 4 —

13

Possible answers: 5 ∙ 5, 4 ∙ 6, 3 ∙ 7, 2 ∙ 8, 1 ∙ 9, 0 ∙ 10, 10 ∙ 0, 9 ∙ 1, 8 ∙ 2, 7 ∙ 3, 6 ∙ 4. Check children’s answers.


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yHANDS ONLesson 3.8

Chapter 3 fifty-five P55

Solve.

4. 10 + 6 has the same sum as 7 + 9 — .

Make a 10 to Add

Use red and yellow and a ten frame. Show both addends. Draw to make a ten. Then write the new fact. Add.

1. 5 + 7

_

2. 9 + 5

_

3. 8 + 3

_

B

10

+ B

4

_

B

14

B

10

+ B

2

_

B

12

B

10

+ B

1

_

B

11



R R R R R

R R Y Y Y

Y Y

R R R R R

R

Y

R R Y Y

R R R R R

R R R R Y

Y Y Y Y

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P56 fifty-six


1. Whatsumdoesthismodelshow?Writethenumber.

2. Whatadditionsentencedoesthismodelshow?Writethenumbersentence.


3. Whatisthesumof4+6?Writethesum.

10 —

4. Thereare2bigflowersand4smallflowers.Howmanyflowersarethere?

Writethenumbersentenceandhowmany.

6—flowers 2—+ 4—= 6—

B

10

+ B

5

_

B

15

B

10

+ B

4

_

B

14



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yLesson 3.9

Chapter 3 fifty-seven P57

Use the clues to solve. Draw lines to match.

3. Ann and Gia are eating grapes.Ann eats 10 green grapes and 6 red grapes. Gia eats the same number of grapes as Ann. Match each person to her grapes.

Use Make a 10 to Add

Write to show how you make a ten. Then add.

1. What is 9 + 7?

9 — 1 1 — 1 6 —

10 — 1 6 — 5 16 —

So, 9 + 7 = 16 — .

2. What is 5 + 8?

8 — 1 2 — 1 3 —

10 — 1 3 — 5 13 —

So, 5 + 8 = 13 — .

Ann

Gia

7 green grapes and 9 red grapes

10 green grapes and 6 red grapes


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P58 fifty-eight


1. Write the number sentence.Make a ten to find 8 + 4.

Write the number sentence.

8 — + 2 — + 2 — =


2. What is the difference? Complete the subtraction sentence.

3. What is the difference?

Write the difference. 8 2 2

_

12

5− 5]

0

6


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Algebra • Add 3 Numbers

Look at the . Complete the addition sentences showing two ways to find the sum.

HANDS ONLesson 3.10

Chapter 3 fifty-nine P59

3. Choose three numbers from 1 to 6.Write the numbers in an addition sentence. Show two ways to find the sum.

1. 5 + 4 + 2 = 11 —

5 — + 6 — = 11 — 9 — + 2 — = 11 —

2. 2 + 2 + 6 = 10 —

4 — + 6 — = 10 — 2 — + 8 — = 10 —


Answers may vary. One possible answer: 3, 4, 6; 3 + 4 + 6 = 13;7 + 6 = 13; 3 + 10 = 13.

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P60 sixty


1. What is the sum of 3 + 4 + 2?

Write the sum.

9 —

2. What is the sum of 5 + 1 + 4?

Write the sum.

10 —


3. What is the sum of 3 and 7?

4. 4 cows are in the barn. 2 more cows join them. How many cows are in the barn now?

Complete the model and the number sentence.

6 — cows 4 + 2 = 6 —

3 + 7

_

6

24

10


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yLesson 3.11

Chapter 3 sixty-one P61

Draw a picture. Write the number sentence.

9. Don has 4 black dogs.Tim has 3 small dogs. Sue has 3 big dogs. How many dogs do they have?

4 — + 3 — + 3 — = 10 — dogs

Algebra • Add 3 Numbers

Choose a strategy. Circle two addends to add first. Write the sum.

7 3

+ 3

_

13

2 2

+ 6

_

10

6 6

+ 3

_

15

3 3

+ 5

_

11

1 2

+ 9

_

12

6 4

+ 3

_

13

1. 2. 3. 4.

5. 6. 7. 8.

4 4

+ 8

_

16

2 0

+ 8

_

10


Circled addends may vary.

Possible drawings shown. Order of addends may vary.

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P62 sixty-two

1. Whatisthesumof4+4+2?

10—

2. Circletwoaddendstoaddfirst.Findthesum.Explainyourstrategy.

7 3

+ 2

_


3. Writeadoublesplusonefactforthesumof7.

3—+ 4—= 7—

4. Whatadditionsentencedoesthismodelshow?Writethenumbersentence.

8—+ 3—= 11—


________

________

Strategies and circled addends will

vary.

12


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yPROBLEM SOLVING

Lesson 3.12

Chapter 3 sixty-three P63

Problem Solving • Use Addition Strategies

Draw a picture to solve.

1. Franco has 5 crayons. He gets 8 more crayons. Then he gets 2 more crayons. How many crayons does he have now?

15 — crayons

2. Jackson has 6 blocks. He gets 5 more blocks. Then he gets 3 more blocks. How many blocks does he have now?

14 — blocks

3. Avni has 7 gifts. Then he gets 2 more gifts. Then he gets 3 more gifts. How many gifts does Avni have now?

12 — gifts

4. Meeka has 4 rings. She gets 2 more rings. Then she gets 1 more ring. How many rings does she have now?

7 — rings

5 — 8 — 2 — 15 —

6 — 5 — 3 — 14 —

7 — 2 — 3 — 12 —

4 — 2 — 1 — 7 —

COMMON CORE STANDARD—1.OA.2 Represent and solve problems involving addition and subtraction.

+ + =

+ + =

+

+

+

+

=

=

Drawings may vary.

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P64 sixty-four


1. Lila has 3 gray stones. She has 4 black stones. She also has 7 white stones. How many stones does she have? Write the number sentence.

14 — stones 3 — 4 — 7 — 14 —

2. Patrick has 3 red stickers, 6 pink stickers, and 8 green stickers. How many stickers does Patrick have? Write the number sentence.

17 — stickers 3 — 6 — 8 — 17 —


3. What is the sum of 2 + 4 or 4 + 2?

Write the number.

6 —

4. There are 6 black pens. There are 3 blue pens. How many pens are there?Write the number.

9 — pens 6 — 3 — 9 —

+

+

+

+

=

=

+ =

Documents

1 MNLAEPB588155 C03SH - Natomas Unified School District · Write two addition sentences you ... Circlehe t part you take from the group. Cross it out. ... Check children’s answers