Addition and Subtraction Fact Families

Front

What is an addition fact family?

Back

An addition fact family is a group of related addition and subtraction facts that use the same numbers. For example, the numbers 3, 6, and 9 can form the facts: 3 + 6 = 9 and 9 - 6 = 3.

Front

What is a subtraction fact family?

Back

A subtraction fact family is a group of related subtraction and addition facts that use the same numbers. For example, the numbers 8, 6, and 2 can form the facts: 8 - 6 = 2 and 2 + 6 = 8.

Front

If 9 - 6 = 3, what is the related addition fact?

Back

3 + 6 = 9.

Front

If 11 + 9 = 20, what is the related subtraction fact?

Back

20 - 11 = 9.

Front

If 6 + 2 = 8, what is the related subtraction fact?

Back

8 - 6 = 2.

Front

If 11 + 6 = 17, what is the related subtraction fact?

Back

17 - 6 = 11.

Front

If 12 - 9 = 3, what is the related addition fact?

Back

3 + 9 = 12.

Front

What is the relationship between addition and subtraction?

Back

Addition and subtraction are inverse operations. This means that if you add a number and then subtract the same number, you return to the original number.

Front

What is the sum of 5 and 3?

Back

5 + 3 = 8.

Front

What is the difference when you subtract 4 from 10?

Back

10 - 4 = 6.