84 5-1 Numbers to 20

Numbers to 20Lesson 1 1

How many straws are there?

eleven

sixteen

17 is 10 and 7. 2 tens make 20.

twelve

seventeen

thirteen

eighteen

fourteen

nineteen

fifteen

twenty

710

17

1010

20

11

16

12

17

13

18

14

19

15

20

10101010

1010101010

10 10

Think

Learn

855-1 Numbers to 20

Show the numbers from 11 to 20 with ten-frame cards,number cards, and number word cards.

How many cherries are there?

How many lollipops are there?

How many party hats are there?

10 + 5 =

is 10 and 7.

10 + 3 =

= 10 + 7

10 and 5 make .

10 and 3 make .

11 12 20

eleven twentytwelve

Do

Exercise 1 • page 83

1

2

3

4

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84 5-1 Numbers to 20

Numbers to 20Lesson 1 1

How many straws are there?

eleven

sixteen

17 is 10 and 7. 2 tens make 20.

twelve

seventeen

thirteen

eighteen

fourteen

nineteen

fifteen

twenty

710

17

1010

20

11

16

12

17

13

18

14

19

15

20

10101010

1010101010

10 10

Think

Learn

855-1 Numbers to 20

Show the numbers from 11 to 20 with ten-frame cards,number cards, and number word cards.

How many cherries are there?

How many lollipops are there?

How many party hats are there?

10 + 5 =

is 10 and 7.

10 + 3 =

= 10 + 7

10 and 5 make .

10 and 3 make .

11 12 20

eleven twentytwelve

Do

Exercise 1 • page 83

1

2

3

4

Textbook 1A_Insides.indd 85 17/10/17 3:48 PM

102 6-1 Add by Making 10 — Part 1

Add by Making 10 — Part 1Lesson 1 1

There are 9 yellow peppers and 4 orange peppers.How many peppers are there altogether?

Make a 10!

There are peppers altogether.

9 and 1 make 10.10 and 3 make ?

31

9 + 4

9 + 4 =

Think

Learn

1036-1 Add by Making 10 — Part 1

8 + 3 =

10 + 1 = ?8 and 2 make 10.

12

8 + 3

There are 8 green scissors and 5 pink scissors. How many scissors are there in all?

8 + 5 =

There are scissors altogether.

Add 3 to 8.

Do

1

2

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102 6-1 Add by Making 10 — Part 1

Add by Making 10 — Part 1Lesson 1 1

There are 9 yellow peppers and 4 orange peppers.How many peppers are there altogether?

Make a 10!

There are peppers altogether.

9 and 1 make 10.10 and 3 make ?

31

9 + 4

9 + 4 =

Think

Learn

1036-1 Add by Making 10 — Part 1

8 + 3 =

10 + 1 = ?8 and 2 make 10.

12

8 + 3

There are 8 green scissors and 5 pink scissors. How many scissors are there in all?

8 + 5 =

There are scissors altogether.

Add 3 to 8.

Do

1

2

Textbook 1A_Insides.indd 103 17/10/17 3:48 PM

120

14 − 9 = + 4 11 − 8 = + 1

16 − 9 = + 6

17 − 8 = + 7

Subtract 9 from 15.

=

Should + or – go in the ?

10 − 9 = 10 − 8 =

10 − 9 =

10 − 8 =

11 − 9 =

13 − 8 =

17 − 9 =

12 − 8 =

15 − 9 =

16 − 8 =

14 − 9 = 11 − 8 =

16 − 9 =

17 − 8 =

(a)

(a)

(b)

(c)

(c)

(e)

(d)

(b)

( d )

(f )

7-1 Subtract from 10 — Part 1

Exercise 1 • page 117

3

4

5

1217-2 Subtract from 10 — Part 2

Subtract from 10 — Part 2Lesson 2 2

Sofia caught 12 trout. She puts 7 trout back.How many trout are left?

12 − 7 =

trout are left.

Think

Learn

210

12 − 7

10 − 7 = 33 and 2 make ?

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122 7-2 Subtract from 10 — Part 2

Sofia has 15 stickers. She uses 6 stickers.How many stickers are left?

15 − 6 =

There are stickers left.

Subtract 6 from 12.

12 − 6 =

Do

2

5

10

10

12 − 6

15 − 6

1

2

7-2 Subtract from 10 — Part 2

110

11 − 5

Subtract 5 from 11.

=

11 − 6 = 16 − 7 =

13 − 5 =

14 − 5 = 12 − 3 =

11 − 7 =

14 − 7 = + 4 12 − 5 = + 2

13 − 6 = + 3

11 − 4 = + 1

10 − 7 = 10 − 5 =

10 − 6 =

10 − 4 =

14 − 7 = 12 − 5 =

13 − 6 =

11 − 4 =

(a)

(a)

(b)

(b)

(c)

(c)

(d)

(d)

(e) ( f )

Exercise 2 • page 121

123

3

4

5

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122 7-2 Subtract from 10 — Part 2

Sofia has 15 stickers. She uses 6 stickers.How many stickers are left?

15 − 6 =

There are stickers left.

Subtract 6 from 12.

12 − 6 =

Do

2

5

10

10

12 − 6

15 − 6

1

2

7-2 Subtract from 10 — Part 2

110

11 − 5

Subtract 5 from 11.

=

11 − 6 = 16 − 7 =

13 − 5 =

14 − 5 = 12 − 3 =

11 − 7 =

14 − 7 = + 4 12 − 5 = + 2

13 − 6 = + 3

11 − 4 = + 1

10 − 7 = 10 − 5 =

10 − 6 =

10 − 4 =

14 − 7 = 12 − 5 =

13 − 6 =

11 − 4 =

(a)

(a)

(b)

(b)

(c)

(c)

(d)

(d)

(e) ( f )

Exercise 2 • page 121

123

3

4

5

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1257. subtitle124 7-3 Subtract the Ones First

Subtract the Ones FirstLesson 3 3

Sofia has 12 raspberries.She eats 5 of them.How many raspberries are left?

Which ones will I eat first?

Think

1257. subtitle 1257-3 Subtract the Ones First

12 − 5 =

12 − 5 =

There are raspberries left.

12 − 2 = 1010 − 3 = ?

LearnLearn

210

12 − 5

32

12 − 5

Method 1

Method 2

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166 Review 2

What comes next?

4 + 8 = 10 +

13 − 8 = − 5

11 − 2 = 4 + 12 − 8 = 13 −

14 − 5 = 10 −

14 − 6 = 8 + 9 =

7 + = 11

16 − 7 = 3 +

( h )( g )

(f )(e)

(c)

(b)(a)

15 − = 7(d)

(c)

(b)

(a) 15

nineteen

15 − 6

6

twenty

11

twelve

16 − 6

18

eight

14

two

9 + 6 15 + 2 19 − 6

Put in order from least to greatest.

( i ) ( j )

4

5

6

167Review 2

Salim wants to read 15 books.He has read 9 books so far.How many more books does he still need to read?

Mari has 7 books. She buys 5 more books.How many books does she have now?

Write an equation for each and find the answer.

Lisa read from the beginning of the 3rd pageto the end of the 12th page in a book.How many pages did she read?

Tyler found 15 seashells.3 of them are broken.How many seashells are not broken?

Holly gave away 3 seashells.She now has 6 seashells.How many seashells did she have at first?

There are 14 dogs in an animal shelter.7 of the dogs are adopted.How many dogs are waiting to be adopted?

4 cats were adopted in the morning.8 cats were adopted in the afternoon.How many cats were adopted that day?

( f )

(e)

(d)

(c)

(b)

(a)

7

8

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