Multiplying and Dividing Rational Numbers

A grocery store sells chicken for $3.30 per pound. What would be the cost of 2 1/2 pounds of chicken?

• $8.00

• $8.25

• $82.50

• $0.80

Tags

CCSS.5.NBT.B.7

CCSS.5.NF.B.4

CCSS.5.NF.B.6

A team of workers took 225.5 hours to complete a task. A smaller team of workers will complete the same task, but it will take them 1.5 times as long as it took the first team. How long will it take the smaller team to complete the job?

• 338.25 hours

• 3382.50 hours

• 33.82 hours

• 400 hours

Tags

CCSS.5.MD.A.1

CCSS.5.NBT.B.5

CCSS.5.NBT.B.7

A puppy weighed 1.2 lbs at birth. At the end of 8 months the puppy weighed 10 3/4 times its birth weight.How many pounds did the puppy weigh at the end of 8 months?

• 9.6 pounds

• 86 pounds

• 12.9 pounds

• 64 pounds

Tags

CCSS.5.NBT.B.7

CCSS.5.NF.B.4

CCSS.5.NF.B.5

CCSS.5.NF.B.6

A recipe for cake requires 1/3 cup of milk. Molly wants to make 4/5 of the recipe. How many cups of milk should Molly use to make the cake?

• 4/15

• 5/12

• 1/5

• 6/8

Tags

CCSS.5.NF.B.4

CCSS.5.NF.B.5

CCSS.5.NF.B.6

The candy store sells candy for $11.50 per pound. Julie buys 4 1/5 pounds of candy. How much was her total cost?

• $2.73

• $7.30

• $44.00

• $48.30

Tags

CCSS.5.NBT.B.7

CCSS.5.NF.B.4

CCSS.5.NF.B.6

Ms. Najera's 3rd period class took 1.75 hours to complete a project. Her smaller 5th period took 1.4 times as long to complete the project. How long did it take Ms Najera's 5th period class to complete the project?

• 0.35

• 2.45 hours

• 8 hours

• 2 hours

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.C.9

CCSS.6.NS.B.3

CCSS.6.RP.A.3

A baby elephant weighed 0.1 tons at birth. After 70 years, the elephant weighs 50 1/2 times its birth weight. How much did the elephant weigh after 70 years?

• 50 tons

• 505tons

• 5.05 tons

• 55 tons

Tags

CCSS.5.NBT.B.7

CCSS.5.NF.B.4

CCSS.5.NF.B.5

CCSS.5.NF.B.6

A recipe for conchas requires 4/5 cups of flour. Estrella wants to make 1/2 of the recipe. How many cups of flour should Estrella use to make the conchas?

• 1/5

• 6/8

• 4/5

• 2/5

Tags

CCSS.5.NF.B.6

A store sells bananas for $0.35 per pound. Tanya buys 3 3/5 lbs of bananas, How much did Tanya pay?

• $1.26

• $12.60

• $126.00

• $3.25

Tags

CCSS.5.NBT.B.7

CCSS.5.NF.B.4

CCSS.5.NF.B.6

Knyla runs a mile in 7.50 minutes. Daisy takes 1.30 times as long to run a mile. How long does it take Daisy to run a mile?

• 6.20 minutes

• 9.75 minutes

• 97.5 minutes

• 975 minutes

Tags

CCSS.5.MD.A.1

CCSS.5.NBT.B.7