Est. decimal products
Estimate this product:
3.7 x 5.3
20
Round to the nearest whole number (4 x 5)
Mark works at a hardware store. He worked 18 hours this week. Last week, he worked 3.5 times as many hours as he worked this week. How many hours did Paul work last week? Show your work.
He worked 63 hours last week.
18 x 3.5 = 63 hours.
Jay has a spool of string that is 340.8 yards long. He will cut the string into 8 equal pieces for a project. How many yards will each piece be?
Each piece will be 42.6 yards long
Draw an area model for 0.7 x 0.3 and show your answer.
0.21
Don has 10.81 pounds of vegetables to be divided equally into 2.3 packages. How much goes in each package?
4.7 pounds
Jack drove 345.3 miles. For each gallon of gas, the car can travel 23 miles. Select a reasonable estimate of the number of gallons of gas Jack used.
15
Round 345.3 to 345 and divide by 23.
Kyle is making a model in architecture of the Eiffel Tower. The tower from bottom to tip is actually 1063 feet tall. If the model is 1/1000 the actual size of the tower, how tall would the model be?
1.063 feet tall
1063 x .001 means you would need to move the decimal point to the left 3 times.
5151.6 divided by 32.4
159
Chris rode his bicycle 29.5 miles in 5 hours. He rode the same number of miles each hour. Write a division sentence using compatible numbers to estimate the distance he rode in one hour.
30 divided by 5 = 6.
Rita is hiking along a trail that is 13.7 miles long. So far she has hiked along one-tenth of the trail. How far has Rita hiked?
1.37 miles
13.7 x 0.1 = 1.37
Estimate the following product:
526.46 x 1.8
526 x 2 = 1,052
Round 526.46 to 526 and round 1.8 to 2 and then multiply.
Jeff is making a long table top to hold all of his baseball cards. He is using 4 pieces of wood that are each 2.75 feet long. How much wood will he use to make the shelf?
He will use 11 feet of wood.
2.75 x 4 = 11 feet
Jane has 200 feet of yarn to make 80 bracelets to sell at school. She uses the same amount of yarn to make each bracelet.
Write an expression that will find the amount of yarn she uses to make one bracelet and solve.
200 divided by 80 = b
b = 2.5 feet
48.6 ÷ 102 =
0.486
2.43 divided by 0.54
4.5
Steven bought a tray of plants for $8.15. There were 16 plants in the tray. If Steven only bought 1 plant, about how much would it have cost?
About $0.50 each
Round $8.15 to $8. 16 x 0.5 = 8.
Multiply:
532.4 x 2.3
1224.52
263.4 divided by .4
658.5
The cost of admission to the Baltimore Aquarium is $12.50 for each senior citizen, $13.50 for each adult, and $5.25 for each child. A family of 2 adults and 1 child plans to spend the day at the Baltimore Aquarium. How much does admission for the family cost? Write an equation and solve.
($13.50 x 2) + ($5.25)
$27.00 + $5.25
$32.25
Lana has a ribbon that is 2.2 meters long. She cuts the ribbon into 4 equal pieces to trim the edges of her bulletin board. What is the length of each piece of ribbon?
0.55 meters
Tom wants to buy as many packs of candy as he can. Each pack costs $0.70. He only has $20. How much will he pay and how much change will he get?
He will spend $19.60 and get $0.40 change.
20 divided by .7 = 28.5
He cannot purchase part of a pack of candy, so he would purchase 28 packs. 28 x .7 = $19.60
$20 - $19.60 = $0.40 change.
478.24 x 7.5
3586.8
Lee collected 47.6 pounds of apples from his orchard. He wanted to split it equally among 14 friends. How many pounds does each friend get?
3.4 pounds each
Three friends go to the local farmers' market. Jake spends $8.25. Andy spends 4 times as much as Jake. Brandon spends $9.50 more than Andy. How much does Brandon spend?
$42.50
Jake: $8.25
Andy: ($8.25 x 4) = $33
Brandon: ($33) + ($9.50)
Damon kayaks on a river near his home. He plans to kayak a total of 6.4 miles. Damon kayaks at an average speed of 1.6 miles per hour. How many hours will it take Damon to kayak the 6.4 miles?
4 hours