Addition/Subtraction Fact Families

What is the missing number in the fact family: 6 - 2 = 4, 4 + __ = 6?

• 1

• 3

• 5

• 2

What is the missing number in the fact family: 8 + 6 = 14, 14 - __ = 8?

• 2

• 4

• 10

• 6

What is the missing number in the fact family: 12 - 7 = 5, 5 + __ = 12?

• 5

• 10

• 7

• 15

What is the missing number in the fact family: 10 + 4 = 14, 14 - 4 = __?

• 8

• 12

• 16

• 10

What is the missing number in the fact family: 15 - 9 = 6, 6 + __ = 15?

• 6

• 12

• 9

• 3

What is the missing number in the fact family: 11 + 8 = 19, 19 - __ = 11?

• 7

• 9

• 10

• 8

What is the missing number in the fact family: 13 - 6 = 7, 7 + __ = 13?

• 5

• 6

• 8

• 10

Which set of numbers can be used to make an addition and subtraction fact family?

• (1, 8, 4)

• (3, 7, 2)

• (4, 1, 9)

• (7, 2, 9)

If 15 - 9 = 6, then 9 + ? = 15

• 6

• 7

• 9

• 17

If 7 + 6 = 13, then 13 - 7 = ?

• 7

• 6

• 13

• 20