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Chapter 9 Review
Test Description: Decimal Operations
Instructions: Answer all questions to get your test result.
1) 3.49 x 7
A
2.443
B
244.30
C
2,443
D
24.43
2) 4.52 x ? = 22,600
A
5
B
5000
C
50
D
500
3) 61.32 divided by 30
A
20.44
B
2.44
C
2.044
D
24.40
4) 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
5) 43.84 x ? = 43,840
A
10 x 10
B
100
C
10
D
1000
6) 7.93 x 8 = ?
A
56.24
B
63.44
C
63.24
D
55.44
7) Estimate the sum by rounding each number to the nearest whole number. 43.61 + 9.2
A
55
B
52
C
53
D
54
8) Estimate the difference by rounding each number to the nearest whole number. 27.75 - 8.49
A
20
B
22
C
19
D
21
9) 8.3 divided by 10
A
0.83
B
830
C
83.0
D
0.083
10) 2.8 divided by 100
A
0.028
B
280.0
C
0.28
D
28.0
11) 7 divided by 1000
A
7000
B
0.007
C
700
D
0.07
12) 3.6 divided by 60
A
6
B
0.06
C
0.6
D
0.006
13) 7.2 divided by 800
A
0.009
B
9.0
C
0.09
D
0.9
14) 56 divided by 7000
A
8.0
B
0.8
C
0.08
D
0.008
15) Estimate the product by rounding to the nearest whole number. 62.36 x 4
A
252
B
250
C
249
D
248
16) Estimate the quotient. 63.86 divided by 8
A
7.9
B
8
C
7.98
D
7
17) A piece of Nerd's Rope is 7 inches long. It is cut into 8 equal pieces. How long is each piece?
A
875 inches
B
0.875 inches
C
0875 inches
D
08.75 inches
18) 0.48 x 10
A
4.8
B
0.48
C
48.0
D
0.048
19) 27.2 x 400
A
108.8
B
10.88
C
1,088
D
10,880
*select an answer for all questions
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