Addition and Subtraction to 20

18-18=

• 0

• 1

• 6

• 18

10 - 5 =

• 5

• 6

• 4

• 3

6 - 2 =

• 4

• 3

• 2

• 1

Layla had 10 apples. She gave 6 apples to Ammarah. How many apples does she have now?

• 4

• 3

• 2

• 1

There were 10 cows in the barn.  3 of the cows ran off.  The rest are in the barn.  How many cows are still in the barn?

• 13

• 7

• 8

Joey has 5 pencils on his desk, and he has 3 more pencils in his backpack, how many pencils does Joey have all together?

• 8

• 3

• 5

There are 8 butterflies. 4 are yellow. The rest of the butterflies are white. How many butterflies are white?

• 2

• 4

• 6

• 12

What is the missing number?

7 + __ = 10

__ + 7 = 10

10 - 7 = __

10 - __ = 7

What is the missing number?

9 + __ = 10

__ + 9 = 10

10 - 9 = __

10 - __ = 9

What is the missing number?

4 + __ = 10

__ + 4 = 10

10 - 4 = __

10 - __ = 4