Addition/Subtraction Fact Families

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

• 3+ 2 = 5

• 5 - 3 = 2

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

• 3 + 2 = 5

• 5 - 3 = 2

Find the subtraction sentence for this addition fact:
3 + 6 = 9

• 6 - 3 = 9

• 9 - 6 = 3

• 9 - 4 = 5

• 9 + 3 = 6

Use mental math to solve.

120 + 42 + 80

Which number sentence completes the fact family?

Find the related ADDITION fact for:

15 - 9 = 6

• 6 + 9 = 15

• 15 - 9 = 6

• 15 + 6 = 21

Find the related ADDITION fact for:

12 - 9 = 3

• 3 + 9 = 12

• 9 + 12 = 3

• 9 + 12 = 21

Find the related ADDITION fact for:

14 - 7 = 7

• 14 + 1 = 15

• 7 + 7 = 14

• 7 + 14 = 21

Which number sentence completes the fact family?

• 5+10= 15

• 5+6=11

• 5+5=10

Find the related ADDITION fact for:

9 - 6 = 3

• 6 - 3 = 9

• 9 + 6 = 3

• 3 + 6 = 9