Make 10 to add
Find the missing part
Tens and Ones
Subtract or Add Within 20
Doubles and Near Doubles
100

8 + 2 + 6 =

16

100

Jack has 15 flowers. 8 flowers are red. The rest are yellow. How many flowers are yellow?

7 flowers 

100

17 is _______ ten ________ ones

1 ten 7 ones 

100

14 - 6 = ?

8

100

7 + 7 =

14

200

7 + 5 + 3 =

15

200

There are 14 goats in a barn. 5 goats go outside. How many goats are still in the barn? 


a. 5 goats

b. 6 goats 

c. 9 goats

c. 9 goats 

200

Show a group of 10.

00000

00000

200

5 + 8 = ?

13 

200

9 + 9 = ?

18

300

5 + 4 + 5 =

14


300

There are 7 blue crayons. There are 6 green crayons. There are 4 red crayons. How many crayons are there in all?

There are 17 crayons in all.  

300

1 ten 0 ones is __________.

10

300

9 + 3 = ?

12

300

9 + 8 = ?

17

400

9 + 1 + 6 =

16


400

There are 16 books on a shelf Some fall. Now there are 9 books on the shelf. How many books fall? 

a. 6 books

b. 7 books 

c. 9 books

b. 7 books 

400

18 is _______ ten _______ ones

1 ten 8 ones 

400

12 - 4 = ?

400

How can you use doubles to find 6 + 7? 

A. 6 + 7 + 1 

B. 6 + 6 + 1 

C. 7 + 7 + 1

B. 6 + 6 + 1

500

7 + 6 + 3 =

16

500

There are 17 plates. 8 are dirty. The rest are clean. How many plates are clean? 


a. 9 plates

b. 8 plates 

c. 7 plates

a. 9 plates 

500

1 ten 9 ones is __________.

19

500

15 - 7 = ?

500

How can you use doubles to find 4 + 5? 

A. 1+ 5 + 5

B. 4 + 5 + 1 

C. 4 + 4 + 1

C. 4 + 4 + 1

M
e
n
u