Find the Missing Number Addition and Subtraction

Make a 10 to add. Add the other number to find the sum.

7 + 3 + 3 =

• 13

• 14

• 10

• 11

• 14

• 12

• 15

• 16

Count on to add .

6 + 2 =

• 7

• 8

• 9

• 10

Use the fact family to find the difference.

• 8

• 10

• 9

• 7

Use the number line to help you add.

9 + 3 =

• 11

• 10

• 13

• 12

+ 4 = 10
What is the missing number?

• 5

• 6

• 7

Selly had 50 sweets.

She gave away 13 sweets to her friends.

How many sweets were left?

• 20 sweets

• 27 sweets

• 37 sweets

• 1

• 2

• 3

39 - 27 = ______

• 2

• 12

• 32