Fact Families

Front

What is a fact family?

Back

A group of related addition and subtraction sentences that use the same numbers.

Front

What are the numbers in the fact family for 2, 3, and 5?

Back

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

Front

What is the addition sentence for the fact family 4, 5, and 9?

Back

4 + 5 = 9.

Front

What is the subtraction sentence for the fact family 10, 6, and 4?

Back

10 - 6 = 4.

Front

Which number sentence is part of the fact family 1, 2, and 3?

Back

1 + 2 = 3.

Front

What is the missing number in the fact family 7, 8, and ?

Back

15 (7 + 8 = 15).

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 5 + 4 = 9, what is the related subtraction sentence?

Back

9 - 4 = 5.

Front

What is the fact family for the numbers 3, 4, and 7?

Back

3 + 4 = 7, 4 + 3 = 7, 7 - 3 = 4, 7 - 4 = 3.

Front

Which sentence does NOT belong to the fact family 2, 5, and 7?

Back

2 + 6 = 8.