MyMath Chapter 4 Review

Count back to subtract. Start with 5.

5 - 2 =

• 5

• 2

• 3

• 7

Use the number line to subtract. What is the difference?

4 - 2 =

• 2

• 6

• 1

• 3

Add the doubles fact. Then subtract.

4 + 4 = 8

8 - 4 = __

• 12

• 4

• 8

• 5

Take apart the number to make a 10. Then subtract.

10 - 3 = __

• 10

• 7

• 13

What is the missing part?
5 + __ = 10

10 - 5 = __

• 15

• 5

• 10

Choose a related subtraction fact for the following addition sentence:

6 + 2 = 8

• 8 - 2 = 6

• 10 - 8 = 2

• 10 - 8 = 2

• 6 - 2 = 4

What is the missing part?

7 + __ = 12

12 - 7 = __

• 6

• 5

• 7

• 19

Choose a related addition fact for the following subtraction number sentence:

9 - 6 = 3

• 9 + 6 = 15

• 9 + 3 = 12

• 6 + 3 = 9

Addition and subtraction sentences that use the same numbers are a ...

• fact family

• missing addend

• count back

This is an example of a....

• missing addend

• fact family

• count back