Fact family

Front

What is a fact family?

Back

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

Front

How many numbers are in a fact family?

Back

A fact family consists of three numbers.

Front

If 2 + 3 = 5, what are the other equations in this fact family?

Back

3 + 2 = 5, 5 - 2 = 3, 5 - 3 = 2.

Front

What is the missing equation in the fact family: 4 + 5 = 9?

Back

5 + 4 = 9, 9 - 4 = 5, 9 - 5 = 4.

Front

If 10 + 2 = 12, what is 12 - 10?

Back

2.

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

What is the relationship between multiplication and division in a fact family?

Back

Multiplication and division are inverse operations; knowing one helps you find the other.

Front

If 7 + 8 = 15, what is 15 - 8?

Back

7.

Front

What is a number bond?

Back

A number bond shows how numbers are related through addition and subtraction.

Front

If 6 + 4 = 10, what is the missing equation in the fact family?

Back

10 - 6 = 4.