Addition and Subtraction Fact Families

Front

What is a fact family?

Back

A fact family is a group of related addition and subtraction equations that use the same numbers.

Front

If 6 - 2 = 4, what is the related addition equation?

Back

4 + 2 = 6.

Front

What is the relationship between addition and subtraction in a fact family?

Back

Addition and subtraction are inverse operations; knowing one helps you find the other.

Front

If 7 + 2 = 9, what is the related subtraction equation?

Back

9 - 2 = 7.

Front

What is the missing number in the fact family: 10 + 4 = 14, 14 - __ = 10?

Back

4.

Front

If 12 - 7 = 5, what is the related addition equation?

Back

5 + 7 = 12.

Front

What is the missing number in the fact family: 13 - 6 = 7, 7 + __ = 13?

Back

6.

Front

How can you check your work in a fact family?

Back

You can check by using the inverse operation; if you add or subtract the same number, you should get the original number.

Front

What is the missing number in the fact family: 8 + __ = 15, 15 - 8 = ?

Back

7.

Front

If 5 + 3 = 8, what is the related subtraction equation?

Back

8 - 3 = 5.