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