Unit 1b Retake: Decimals

The gas tank in a hybrid car can hold 14 gallons of gas. If the car can go 336 miles without having to refuel, how many miles per gallon (mpg) does the car get?

• 2.4 mpg

• 22.5 mpg

• 24 mpg

• 25 mpg

Melanie painted the playroom in her house. She used 3.35 gallons of white paint, 2.75 gallons of ivory paint, and 4.4 gallons of blue paint. How many gallons of paint did she use?

• 6.54

• 10.14

• 10.4

• 10.5

Mr. and Mrs. Wodehouse's five children are buying a cake for their parents' wedding anniversary. The cake costs $24.10. If the children split the cost of the cake equally, how much will each pay?

• $4.10

• $4.82

• $12.05

• $48.20

Ms. Mathsklz worked the following division problem incorrectly. What was her mistake?

• Incorrectly added zero in dividend.

• She did not add a zero in the quotient when dividing.

• She did not move the decimal in the divisor.

• She did not move the decimal in the dividend.

Jasmine has a ribbon that is 12.6 meters long. Sharon has a ribbon that is 3.8 meters shorter. What is the total length of the two ribbons?

• 8.8

• 16.4

• 21.4

• 47.88

Julia went to a candy store with $7.65 in her pocket. She bought a bag of gummy bears for $4.23. How much money did she have left after buying the gummy bears?

• $3.32

• $3.42

• $3.52

• $11.88

Each participant in a bicycle marathon needs to cover a distance of 8.5 miles every day for 6 days. How many total miles will one participant cover by the end of the marathon?

• 48.5 miles

• 51 miles

• 55 miles

• 45 miles

Bella was showing her grandmother how to solve the problem 658 ÷ 7 by using the long division algorithm. Her work is shown below. Did Bella solve the problem correctly?

• Yes, her answer is correct

• No, she multiplied incorrectly

• No, she did not place the digits correctly in her quotient

• No, she confused the dividend and the divisor

A rectangular playground is 18.2 meters by 12.75 meters. Find its area in square meters. (area = L x W)

• 1.43

• 5.45

• 30.95

• 232.05

Marcia was given the following problem. Her work is shown below. Review and choose the appropriate answer.

• Marcia solved it correctly

• Marcia placed her decimal wrong in her answer. Her answer should be 0.68

• Marcia placed her decimal wrong in her answer. Her answer should be 68

• Marcia multiplied wrong. Her answer should be 4.28