Relating Addition and Subtraction Quiz

Choose the corresponding subtraction number sentence for the following addition number sentence:

30 + 40 = 70

• 70 - 30 = 40

• 70 - 0 = 70

• 70 - 50 = 20

• 70 - 10 = 60

Choose the corresponding subtraction number sentence for the following addition number sentence:

10 + 30 = 40

• 40 - 30 = 10

• 40 - 40 = 0

• 40 - 20 = 20

• 40 - 5 = 35

Choose the corresponding subtraction number sentence for the following addition number sentence:

60 + 20 = 80

• 80 - 20 = 60

• 80 - 10 = 70

• 80 - 50 = 30

• 80 - 0 = 80

Choose the corresponding subtraction number sentence for the following addition number sentence:

10 + 10 = 20

• 20 - 10 = 10

• 20 - 20 = 0

• 20 - 0 = 20

• 20 - 5 = 15

Choose the corresponding subtraction number sentence for the following addition number sentence:

10 + 20 = 30

• 30 - 20 = 10

• 30 - 30 = 0

• 30 - 15 = 15

• 30 - 0 = 30

Write the missing number.

40 - 10 = ____

10 + ____ = 40

Write the missing number.

60 - 20 = ____

20 + ____ = 60

Write the missing number.

90 - 10 = ____

10 + ____ = 90

Write the missing number.

30 - 20 = ____

20 + ____ = 30

Write the missing number.

90 - 50 = ____

50 + ____ = 90