1.NBT.5 Topic 11 Assessment

Use the partial hundred chart or your own strategy to subtract.

70 - 20 = _____

• 70

• 60

• 50

• 40

Use the place value blocks or your own strategy to find the difference.

40 - 30 = _____

• 10

• 20

• 30

• 40

Use the open number line or your own strategy to solve.

60 - 20 = _____

• 4

• 30

• 40

• 8

Solve using the strategy of your choice.

70 - 60 = _____

• 1

• 10

• 15

• 20

Use mental math to solve.

23 - 10 = _____

• 11

• 13

• 20

• 32

Use mental math to solve.

94 - 10 = _____

• 45

• 82

• 90

• 84

Use mental math to solve.

51 - 10 = _____

• 39

• 41

• 45

• 50

Choose the number that is missing.

50 + _____ = 80, so 80 - 50 = _____

• 30

• 35

• 40

• 45

Choose the number that is missing.

20 + _____ = 60, so 60 - 20 = _____

• 20

• 25

• 35

• 40

A store has 90 sleds. It sells 30 sleds. How many sleds does the store have left?

Choose the equation that matches the story.

• 30 + 30 = 60

• 90 + 30 = 120

• 90 - 30 = 60

• 90 - 30 = 30