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Topic 3: Operations With Decimals Review
Test Description: Operations with Decimals Review
Instructions: Answer all questions to get your test result.
1) 92.2 – ____ is about 64. Which decimal, rounded to the nearest whole number, makes the equation true?
A
30.7
B
28.9
C
27.6
D
29.5
2) Estimate the sum of 2.31 + 5.67 by rounding each addend to the nearest tenth.
A
7.98
B
8.0
C
8.11
D
7.9
3) Estimate the sum of 4.32 + 9.49 by rounding each addend to the nearest whole number.
A
13
B
14
C
12
D
15
4) Patrick went out to lunch. He ordered a salad ($3.75), sandwich($5.00), and drink($1.99). About how much did he spend on food?
A
$11
B
$10
C
$13
D
$12
5) Manuel hiked the Yellow Trail (1.02 miles) and the Blue Trail (1.86 miles). Estimate the distance he hiked by rounding each distance to the nearest tenth.
A
2.9 miles
B
3.0 miles
C
3.1 miles
D
2.8 miles
6) Samantha measured the height of her plant to be 0.248 centimeters. Rebecca’s plant measured 0.354 centimeters. How much greater was Rebecca’s plant’s height than Samantha’s.
A
0.112
B
0.106
C
0.114
D
0.014
7) Find the sum. 6.7 + 3.78 =
A
10.15
B
9.48
C
9.98
D
10.48
8) Remy bought a bottle of water with a volume of 0.56 L. After Remy drank some of the water there was 0.17 L left. How much water did Remy drink?
A
0.0 L
B
0.11 L
C
0.39 L
D
0.41 L
9) Find the difference. 6.54 – 3.88 =
A
2.67
B
2.77
C
2.66
D
2.76
10) Juan threw a ball 0.0785 km. Steven threw a ball 0.049 km. How much further did Juan throw the ball than Steven?
A
0.0044
B
0.0295
C
0.0145
D
0.0744
11) Which is the best estimate for 49.59 x 6.33?
A
355
B
420
C
300
D
275
12) Which is the best estimate for $65.08 divided by $4.97?
A
14
B
11
C
12
D
13
13) Estimate 54.08 divided by 6.12 using compatible numbers.
A
8
B
6
C
7
D
9
14) Student admission to the zoo is $15.55 per person. What is the best estimate of the cost of admission for 9 students?
A
$135
B
$172
C
$144
D
$180
15) Each piece of fencing is 1.78 feet wide. Mrs. Kim wants to fence her flower garden which has a total perimeter of 43.58 feet. About how many pieces of fencing does she need?
A
22
B
21
C
23
D
24
16) Place the decimal point in the product. 1.23 × 7.8 =
A
95.94
B
959.4
C
9.594
D
9594
17) Brianne takes 4.75 minutes to bike around the block. How long does it take Brianne to bike 11 times around the block?
A
63.26 minutes
B
53.25 minutes
C
52.25 minutes
D
63.26 minutes
18) Find the product. 3.68 × 19.7 =
A
72.496
B
7,249.6
C
724.96
D
57.49
19) Find the product. 3.65 × 154 =
A
462.24
B
5,621.0
C
56.21
D
562.1
20) Shay earns $9.00 an hour. How much will she earn for working 6.5 hours?
A
$58.50
B
$54.50
C
$585.50
D
$58.00
*select an answer for all questions
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