Topic 3: Operations With Decimals Review: Question Preview (ID: 28499)


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Place the decimal point in the product. 1.23 × 7.8 =
a) 9.594 b) 95.94 c) 959.4 d) 9594
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) 24 b) 23 c) 22 d) 21
Student admission to the zoo is $15.55 per person. What is the best estimate of the cost of admission for 9 students?
a) $144 b) $135 c) $180 d) $172
Which is the best estimate for $65.08 divided by $4.97?
a) 11 b) 12 c) 13 d) 14
Estimate 54.08 divided by 6.12 using compatible numbers.
a) 8 b) 9 c) 6 d) 7
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) 0.0145 b) 0.0295 c) 0.0744 d) 0.0044
Which is the best estimate for 49.59 x 6.33?
a) 420 b) 300 c) 275 d) 355
Find the difference. 6.54 – 3.88 =
a) 2.77 b) 2.76 c) 2.67 d) 2.66
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) 0.11 L b) 0.39 L c) 0.41 L d) 0.0 L
Find the sum. 6.7 + 3.78 =
a) 9.98 b) 9.48 c) 10.48 d) 10.15
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) 0.106 b) 0.114 c) 0.014 d) 0.112
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) 3.0 miles b) 2.8 miles c) 2.9 miles d) 3.1 miles
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) $10 b) $11 c) $12 d) $13
Estimate the sum of 4.32 + 9.49 by rounding each addend to the nearest whole number.
a) 13 b) 15 c) 14 d) 12
Estimate the sum of 2.31 + 5.67 by rounding each addend to the nearest tenth.
a) 8.11 b) 7.98 c) 7.9 d) 8.0
92.2 – ____ is about 64. Which decimal, rounded to the nearest whole number, makes the equation true?
a) 29.5 b) 30.7 c) 27.6 d) 28.9
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) 52.25 minutes c) 63.26 minutes d) 53.25 minutes
Find the product. 3.68 × 19.7 =
a) 57.49 b) 72.496 c) 7,249.6 d) 724.96
Find the product. 3.65 × 154 =
a) 462.24 b) 5,621.0 c) 562.1 d) 56.21
Shay earns $9.00 an hour. How much will she earn for working 6.5 hours?
a) $58.00 b) $58.50 c) $585.50 d) $54.50
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