Fact Families addition and subtraction

Front

What is a fact family?

Back

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

Front

What is the inverse relationship in fact families?

Back

It shows how addition and subtraction are related using the same numbers.

Front

Rewrite this number sentence to show the inverse relationship: 1/2 + 3/4 = N

Back

N - 1/2 = 3/4

Front

Rewrite this number sentence as an addition sentence: 5 - 2 = 3

Back

3 + 2 = 5

Front

What does 'sum' mean?

Back

The total using addition.

Front

Rewrite this addition fact family as subtraction: 2 + 3 = 5

Back

5 - 3 = 2

Front

If 4 + 1 = 5, what is the related subtraction fact?

Back

5 - 1 = 4

Front

What is the relationship between addition and subtraction?

Back

They are inverse operations; one undoes the other.

Front

How can you find a missing number in a fact family?

Back

Use the known numbers and the operations of addition or subtraction.

Front

What is the result of 7 - 3?

Back

4