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# Decimals Word Problems Practice Questions Set 3

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Updated on Sep 26, 2011

## Decimals Word Problems

We use decimals every day–to express amounts of money, or to measure distances and quantities. This set of practice problems includes word problems that help you practice your skills in rounding decimals, as well as performing basic mathematical operations with them.

1. Bill traveled 117 miles in 2.25 hours. What was his average speed?
1. 26.3 miles per hour
2. 5.2 miles per hour
3. 46 miles per hour
4. 52 miles per hour
2. Tom is cutting a piece of wood to make a shelf. He cut the wood to 3.5 feet, but it is too long to fit in the bookshelf he is making. He decides to cut 0.25 feet off the board. How long will the board be after he makes the cut?
1. 3.25 feet
2. 3.75 feet
3. 3.025 feet
4. 2.75 feet
3. A bricklayer estimates that he needs 6.5 bricks per square foot. He wants to lay a patio that will be 110 square feet. How many bricks will he need?
1. 650
2. 7150
3. 6500
4. 715
4. Find the area of a circle with a radius of 6 inches. The formula or the area of a circle is A = πr2. Use 3.14 for π
1. 37.68 square inches
2. 113.04 square inches
3. 9.42 square inches
4. 75.36 square inches
5. Mary made 54 copies at the local office supply store. The copies cost \$0.06 each. What was the total cost of the copies?
1. 3.24
2. 3.04
3. 2.88
4. 3
6. Tammi's new printer can print 13.5 pages a minute. How many pages can it print in 4 minutes?
1. 52
2. 48
3. 64
4. 54
7. The price of gasoline is \$2.349 cents per gallon. If the price increases by three tenths of a cent, what will the price of gasoline be?
1. 2.649
2. 2.352
3. 2.449
4. 2.379
8. Louise is estimating the cost of the groceries in her cart. She rounds the cost of each item to the nearest dollar to make her calculations. If an itemcosts \$1.45, to what amount will Louise round the item?
1. 1
2. 1.5
3. 2
4. 1.4
9. A pip has a diameter of 2.5 inches. Insulation that is 0.5 inches thick is placed around the pipe. What is the diameter of the pipe with the insulation around it?
1. 3.0 inches
2. 4.5 inches
3. 2.0 inches
4. 3.5 inches
10. A 64-ounce bottle of detergent costs \$3.20. What is the cost per ounce of detergent?
1. 0.2
2. 0.64
3. 0.05
4. 0.32
11. George worked from 7:00 a.m. to 3:30 p.m. with a 45-minute break. If George earns \$10.50 per hour and does not get paid for his breaks, how much will he earn? (Round to the nearest cent.)
1. 89.25
2. 84
3. 97.13
4. 81.38
12. Marci filled her car's gas tank on Monday, and the odometer read 32,461.3 miles. On Friday when the car's odometer read 32,659.7 miles, she filled the car's tank again. It took 12.4 gallons to fill the tank. How many miles to the gallon does Marci's car get?
1. 16 miles per gallon
2. 18.4 miles per gallon
3. 21.3 miles per gallon
4. 14 miles per gallon
13. Martha has \$20 to spend and would like to buy as many calculators as possible with the money. The calculators that she wants to buy are \$4.25 each. How much money will she have left over after she purchases the greatest possible number of calculators?
1. 0.75
2. 1.25
3. 2.75
4. 3
14. What is the smallest possible number that can be created with four decimal places using the numbers 3, 5, 6, and 8?
1. 0.8653
2. 0.3568
3. 0.6538
4. .5368
15. Which of the following numbers is equivalent to 12.087?
1. 12.0087
2. 120.087
3. 12.087
4. 102.087
16. Which of the following numbers will yield a number larger than 23.4 when it is multiplied by 23.4?
1. 0.999
2. 0.0008
3. 0.3
4. 1.0002
17. Kelly plans to fence in her yard. The Fabulous Fence Company charges \$3.25 per foot of fencing and \$15.75 an hour for labor. If Kelly needs 350 feet of fencing and the installers work a total of 6 hours installing the fence, how much will she owe the Fabulous Fence Company?
1. 1153.25
2. 1232
3. 1069
4. 1005.5
18. Thomas is keeping track of the rainfall in the month of May for his science project. The first day, 2.6 cm of rain fell. On the second day, 3.4 cm fell. On the third day, 2.1 cm fell. How many more cm are needed to reach the average monthly rainfall in May, which is 9.7 cm?
1. 8.1 cm
2. 0.6 cm
3. 1.6 cm
4. 7.4 cm
19. How will the decimal point move when 245.398 is multiplied by 1,000?
1. It will move three places to the right.
2. It will move three places to the left.
3. It will move two places to the right.
4. It will move two places to the left.
20. Mona purchased one and a half pounds of turkey at the deli for \$6.90. What did she pay per pound?
1. 4.6
2. 10.35
3. 3.45
4. 5.7
21. Lucy's Lunch is sending out flyers and pays a bulk rate of 14.9 cents per piece of mail. If she mails 1,500 flyers, what will she pay?
1. 14.9
2. 29.8
3. 256.5
4. 223.5
22. If 967.234 is divided by 10, how will the decimal point move?
1. It will move one place to the right.
2. It will move one place to the left.
3. It will move two places to the right.
4. It will move two places to the left.

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