Add Decimals
231.65 + 0.45 =
232.1
Selma has to hike 11 miles to reach the top of Electric Peak in Yellowstone National Park. After hiking 2.4 miles, she takes a break. How much farther does she have to hike?
8.6 miles
A recipe for chicken soup calls for 3 boxes of chicken broth measuring 15.8 ounces each. How many ounces of broth are used in the recipe?
47.4 ounces
An airplane flew a total of $6,240 miles. Its speed was 520 miles per hour. How many hours did the plane fly?
12 hours
How much fence is needed to surround a garden with side lengths of 2.1 meters, 3.5 meters, 1.9 meters and 2.25 meters?
9.75 meters
When a puppy was adopted, it weighed 4.5 pounds. Now it weighs 12.25 pounds. How much weight did the puppy gain?
7.75 pounds
A sprinkler sprays 0.7 gallons of water per minute. If it takes 45 minutes to water a lawn, how many gallons of water does the sprinkler spray?
31.5 gallons
The cost of a 12 ounces bag of cashews is $5.86. What is the cost per ounce of the cashews, to the nearest penny?
$0.49
Petra buys a pair of jeans for $28.39 and a T-shirt that costs $6.40. How much does Petra spend?
$34.79
Cassie volunteers at an animal shelter. She needs a total of 40 hours of volunteer time for a class. So far, she has volunteered for 18.5 hours. How many more hours does she need to volunteer?
21.5 hours
The price of a gallon of gasoline is $2.389. How much does it cost to fill an empty 12.5 gallon gas tank?
$29.86
An adult African elephant eats about 0.25 tons of food per day. If the zoo orders 2.3 tons of food for the elephant, how many full days will the food last?
9 full days.
Three friends are going camping. They buy a pound of raisins costing $2.93 and a half of a pound of nuts costing $3.75. What is the total cost of the nuts and raisins?
$6.68
A carpenter installing cabinets uses thin pieces of material called shims to fill gaps. The carpenter uses four shims to fill a gap that is 1.5 centimeters wide. The widths of three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.1 centimeter. What is the width of the fourth shim?
0.525 centimeter
Harold bought 3.5 pounds of red apples that cost $1.79 per pound. How much did Harold spend on the red apples?
$6.27
A tailor spends $63.75 to buy 7.5 yards of satin. What is the cost of the satin fabric per yard?
$8.50
Joseph harvested 3 bags of potatoes that weigh 25.5 pounds, 32.25 pounds, and 27 pounds. He says that he harvested a total of 350.7 pounds. What mistake did Joseph make when calculating his total? What is the correct answer?
Joseph did not line up his decimals when he added. The correct answer is 84.75 pounds. My answer is reasonable because the largest number I am adding only goes to the tens place, so it does not make sense for my answer to be over 300 pounds.
A collector purchased a rare book for $97.56 and then sold the book in an online auction for $141.82. The auction charged the collector $8.25 in fees for the use of its service. How much did the collector earn by selling the book?
$36.01
246.5 seconds
The area of a rectangle is 69.75 square inches. The rectangle has a length of 9.3 inches. What is the width of the rectangle?
7.5 inches