Subtraction Within 20

1-1=_

• 0

• 1

• 2

• 7

10-5=_

• 5

• 8

• 9

• 22

20-11=_

• 17

• 9

• 15

• 8

16-12=_

• 14

• 28

• 3

• 4

Lucas has 12 stickers. He gives 4 to his friend. How many stickers does Lucas have left? 

• 7

• 8

• 9

• 10

13 - 7 =

• 6

• 5

• 8

• 7

16 - 6 =

• 10

• 11

• 12

• 9

15 - 7 =

• 22

• 9

• 8

• 12

16 - 8 =

• 9

• 10

• 7

• 8

Mia has 18 cookies. She eats 7. How many cookies does Mia have left? 

• 10

• 11

• 12

• 13