Unit 10 Review

How can you decompose 357 by place value?

• 30 + 5 + 7

• 300 + 50 + 7

• 300 + 5 + 70

• 300 + 70 + 5

What is the difference ?

57 - 31 = ___

• 88

• 76

• 28

• 26

What is the difference ?

45 - 29 = ___

• 73

• 16

• 64

• 100

What number do the base-ten blocks show ?

• 209

• 189

• 180

• 190

Which number is 10 less than 74 ?

• 64

• 54

• 84

• 100

Which number is 10 more than 87 ?

• 100

• 77

• 97

• 67

Which of these shows how to decompose a number to find the difference of

77 - 49 ?

• 77 - 20 - 20 - 1

• 77 - 27 - 2 -1

• 77 - 28 - 10 - 1

• 77 - 40 - 8 - 1

Which equation shows the same difference as

68 - 47 = ?

• 68 - 50 = 18

• 70 - 40 = 30

• 71 - 50 = 21

• 65 - 50 = 15

James has 64 stickers. Mike has 10 fewer stickers than James.

How many stickers does Mike have?

• 74 stickers

• 65 stickers

• 54 stickers

• 44 stickers

Mia makes 46 cookies. She gives 24 of them to her neighbor.

How many cookies does she have left ?

• 70 cookies

• 69 cookies

• 22 cookies

• 12 cookies