Challenge Exercises for Multiplying and Dividing Decimals

Directions: Read each question below. You may use paper and pencil to help you solve these problems. Click once in an ANSWER BOX and type in your answer; then click ENTER. Do not use commas in your answers, just digits. After you click ENTER, a message will appear in the RESULTS BOX to indicate whether your answer is correct or incorrect. To start over, click CLEAR.

 1 Ronnie's high school ran a carwash. If he bought 25 bottles of soap at \$2.95 each, then about how much did he pay? ANSWER BOX: \$  RESULTS BOX:
 2 About how far can you travel on 14.5 gallons of gas if your hybrid car gets 45.6 miles per gallon? ANSWER BOX:  miles   RESULTS BOX:
 3 Charlie is paid \$17.75 per hour and worked 42.5 hours last week. How much money did he earn last week (rounded to the nearest cent)? ANSWER BOX: \$  RESULTS BOX:
 4 An airplane traveled 2,781.2 miles in 6.5 hours. Estimate the average speed of the plane in miles per hour. ANSWER BOX:  mph   RESULTS BOX:
 5 There are 9 people on an elevator. Together they weigh 1,235.52 lbs. Find the average weight. ANSWER BOX:  lbs.   RESULTS BOX:
 6 Six wheel barrows of firewood cost \$189.95. Rounded to the nearest cent, how much does one wheel barrow cost? ANSWER BOX: \$  RESULTS BOX:
 7 Lenny worked 15 days for a total of 133.75 hours. How many hours did he average per day? Round your answer to the nearest tenth. ANSWER BOX:  hours   RESULTS BOX:
 8 Jenny has 75.9 lbs. of coffee. If she places the coffee into 3.2-lb. bags, then how many bags will she need? ANSWER BOX:   RESULTS BOX:
 9 Lilly has 175.35 gallons of spring water. If she pours the water into 1.5-gallon containers, then how many containers will she need? ANSWER BOX:   RESULTS BOX:
 10 Gold costs \$804.10 per ounce. If Jeanne purchased \$4,189.36 of gold, then how many ounces of gold did she get (round your answer to the nearest tenth)?    ANSWER BOX: ounces  RESULTS BOX: