Add and Subtract 2-Digit Numbers on a Hundred Chart

Use Strategies to Add and Subtract Tens

Use strategies to add and subtract tens from any two-digit number.

Multiple Choice

What number is 10 more than the number shaded in the hundreds chart?

• 33

• 44

• 42

• 34

• 53

Multiple Choice

What number is 10 less than 85?

• 58

• 75

• 86

• 84

• 95

Fill in the Blank

Write the number that is 10 more than 42.

Use the number line to prove your answer.

Fill in the Blank

Use the model to solve.

35 + 30 = _____

Multiple Choice

How many TENS will be in the total?

15 + 40

• 5

• 1

• 4

• 15

• 40

Multiple Choice

What is the difference of 70 – 20?

Use the number line to prove your answer.

• 72

• 20

• 70

• 50

• 90

Multiple Choice

What number is 30 less than the number shaded in the hundreds chart?

• 63

• 103

• 83

• 73

• 113

Multiple Choice

How many TENS will be in the difference?

60 – 30 = _____

• 9

• 3

• 6

• 2

• 8

Multiple Choice

Molly had 60 stickers.

She gave 40 away to her friends.

How many stickers does Molly have now?

Draw a base ten model to prove your answer.

• 20

• 90

• 60

• 40

• 100

Multiple Choice

What is the difference of 64 – 40?

Use the number line to prove your answer.

• 104

• 24

• 63

• 44

• 54

Multiple Choice

What number is 20 less than the number shaded in the hundreds chart?

• 16

• 36

• 6

• 46

• 61

Multiple Choice

Jake had 45 Pokémon cards.

He got 30 More from his sister.

How many Pokémon cards does jake have now?

Draw a base ten model to prove your answer.

• 70

• 12

• 120

• 15

• 75

Multiple Choice

How many TENS will be in the total?

13 + 30

• 1

• 3

• 43

• 13

• 4

Multiple Choice

What number is 10 less than 50?

• 40

• 60

• 51

• 49

Fill in the Blank

Use the model to solve.

42 + 40 = _____

Multiple Choice

How many TENS will be in the difference?

84 – 40 = _____

• 12

• 8

• 6

• 4

• 0

Fill in the Blank

Type the number that is 10 more than 11.

Use the number line to prove your answer.

Multiple Choice

What number is 10 more than the number shaded in the hundreds chart?

• 71

• 8

• 17

• 9

• 27

Poll

Let's Reflect: How do you think you did with using strategies to add and subtract tens?