Chapter 9 Review Question Preview (ID: 44595)


Decimal Operations. TEACHERS: click here for quick copy question ID numbers.

7.2 divided by 800
a) 0.009
b) 0.09
c) 0.9
d) 9.0

3.6 divided by 60
a) 0.06
b) 0.6
c) 6
d) 0.006

2.8 divided by 100
a) 0.028
b) 0.28
c) 280.0
d) 28.0

7 divided by 1000
a) 7000
b) 0.007
c) 0.07
d) 700

8.3 divided by 10
a) 0.83
b) 83.0
c) 0.083
d) 830

Estimate the difference by rounding each number to the nearest whole number. 27.75 - 8.49
a) 20
b) 19
c) 21
d) 22

Estimate the sum by rounding each number to the nearest whole number. 43.61 + 9.2
a) 53
b) 52
c) 54
d) 55

7.93 x 8 = ?
a) 56.24
b) 63.44
c) 55.44
d) 63.24

43.84 x ? = 43,840
a) 10
b) 100
c) 1000
d) 10 x 10

61.32 divided by 30
a) 20.44
b) 2.044
c) 2.44
d) 24.40

A stack of 3 identical i-phones is 4.35 inches high. What is the height of 20 of the same i-phones?
a) 29 inches
b) 87 inches
c) 2.9 inches
d) 8.7 inches

4.52 x ? = 22,600
a) 5
b) 50
c) 500
d) 5000

3.49 x 7
a) 24.43
b) 2.443
c) 2,443
d) 244.30

56 divided by 7000
a) 0.008
b) 0.08
c) 0.8
d) 8.0

Estimate the product by rounding to the nearest whole number. 62.36 x 4
a) 248
b) 252
c) 249
d) 250

Estimate the quotient. 63.86 divided by 8
a) 8
b) 7.98
c) 7
d) 7.9

A piece of Nerd's Rope is 7 inches long. It is cut into 8 equal pieces. How long is each piece?
a) 0.875 inches
b) 0875 inches
c) 08.75 inches
d) 875 inches

0.48 x 10
a) 4.8
b) 48.0
c) 0.048
d) 0.48

27.2 x 400
a) 10,880
b) 108.8
c) 1,088
d) 10.88

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