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Rational Number Problems
100

2.17 - 0.8

What is 1.37?

100

2,483 divided by 9. Record remainders.

What is 275 R8?

100

7/8 * 1/2

What is 7/16?

100

4 divided by 1/6 (Partial credit if answer is not simplified)

What is 24?

100

Students are on a 248.5-kilometer bike trip. They rode 52.4 kilometers on the first day. They rode 0.4 of the remaining distance on the second day. How many kilometers do they have left to ride?

What is 117.66 kilometers?

200

4.3 + 4.16

What is 8.46?

200

Divide $54.18 by 6

What is $9.03?

200

1/3 * 3/7 (Partial credit if answer is not simplified)

What is 1/7?

200

4/5 divided by 4 (Partial credit if answer is not simplified)

What is 1/5?

200

Margot has 21 1/2 pounds of flour, 8 pounds of butter, and 18 1/2 pounds of sugar to make shortbread cookies. If she makes 12 batches of cookies and uses all the ingredients, how many pounds of ingredients are used in each batch?

What is 4 pounds?

300

3.42 * 5.15

What is 17.613?

300

Provide a decimal quotient for 56 divided by 5

What is 11.2?

300

1 1/8 * 3 1/3  (1 and 1/8 * 3 and 1/3) (Partial credit if answer is not simplified)

What is 3 3/4?

300

2 1/3 divided by 1 1/3 (2 and 1/3 divided by 1 and 1/3) (Partial credit if answer is not simplified)

What is 1 3/4?

300

A hairdresser combined three bottles of shampoo into one bottle. The first bottle had 4.8 ounces of shampoo, the second bottle had 5.4 ounces, and the third bottle had 6.6 ounces. The hairdresser used 2/5 of the shampoo from the new bottle when she washed her hair. How many ounces of shampoo did she use?

What is 6.72 ounces?
400

Anna's running time for a race was 23.1 seconds. Another runner's time was 5.86 seconds faster. Find the other runner's time.

What is 17.24 seconds?

400

0.2430 divided by 0.6 (Annex zeros if needed to write remainders as decimals)

What is 0.405?

400

A scientist had 3/4 of a bottle of a solution. She used 1/6 of the solution in an experiment. How much of the bottle did she use? (Partial credit if answer is not simplified)

What is 1/8?

400

A store sells honey in 3/8-quart jars. If the store has 24 quarts of honey available on a shelf, how many jars of honey are on the shelf?

What is 64 jars?

400

Roger ran 13.2 miles in 1.6 hours. Ana ran 10.85 miles in 1.4 hours. What was the faster average speed? (Provide a decimal quotient)

What is 7.75?

500

The wings of some hummingbirds beat 52 times per second when hovering. If a hummingbird hovers for 35.5 seconds, how many times do its wings beat?

What is 1,846 times

500

You and a friend are paid $38.25 for doing yard work. You worked 2.5 hours and your friend worked 2 hours. You split the money according to the amount of time each of you worked. How much is your share of the money?

What is $21.25?

500

In Ms. Barclay's classroom, 2/5 of the students play chess. Of the students who play chess, 5/6 also play sudoku. If there are 30 students in Ms. Barclay's class, how many play chess and sudoku?

What is 10 students?

500

The owner of an aquatic store used 17 1/2 gallons of water to fill aquariums. He put 5 5/6 gallons of water in each aquarium. How many aquariums did he fill?

What is 3 aquariums?

500

Students in a cooking class made 4 1/2 quarts of soup. They served 4/5 of the soup to friends. Each serving is 3/5 quart. What is the number of servings?

What is 6 servings?