Fact Families

Front

What is a fact family in mathematics?

Back

A fact family is a group of related addition and subtraction or multiplication and division facts that use the same numbers.

Front

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

Back

8 - 2 = 6 and 8 - 6 = 2.

Front

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

Back

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

Front

If 5 + 6 = 11, what are the related subtraction facts?

Back

11 - 5 = 6 and 11 - 6 = 5.

Front

How can you verify a fact family?

Back

You can verify a fact family by checking that all addition and subtraction facts are correct using the same numbers.

Front

What is the sum of 4 and 7?

Back

The sum of 4 and 7 is 11.

Front

If 12 + 4 = 16, what is the related subtraction fact?

Back

16 - 12 = 4 and 16 - 4 = 12.

Front

What is the difference between 14 and 5?

Back

The difference between 14 and 5 is 9.

Front

If 5 + 9 = 14, what are the related subtraction facts?

Back

14 - 5 = 9 and 14 - 9 = 5.

Front

What is the first step to solving an application-based question involving fact families?

Back

Identify the numbers involved and the operations (addition or subtraction) that relate them.