Rational Number Expressions from Word Problems

Devon had his two friends over for pizza. Devon ate 1/4 of the pizza. One of his friends ate 3/8 of the pizza and the other friend ate 1/8 of the pizza. How much of the pizza is left?

• 1/4

• 1/8

• 1/3

• 1/5

Aryon has $20. He buys 2 Cokes that each cost $1.50. He also buys a sandwich for $5.50 and a bag of chips that costs $2.25. After Aryon pays for his lunch, how much money does he have left?

• $10

• $10.75

• $9.25

• $0

A girl's hair is 12 3/8 inches long. If she has 2 1/2 inches cut off, how long will her hair be?

• 10 1/4 inches

• 10 3/16 inches

• 9 7/8 inches

• 10 7/8 inches

Solve for v.

• A

• B

• C

• D

• E

• A

• B

• C

• D

• A

• B

• C

• D

​ (a)  

• $7

• $4

• $29

• $26

One weekend, Latoya and Tyler mowed lawns to earn spending money. Together, they earned $13.50 an hour for 8 hours of work. Each received half the total earnings. If Latoya then spent $18 on a video game, how much money did she have left?

Determine the distance in altitude between New Orleans, Louisiana (8.2 feet below sea level) and Rapid City, South Dakota (32.9 feet above sea level).

Which expression could you use to solve the problem?

• -8.2 + 32.9

• 8.2 / 32.9

• 32.9 - - 8.2

• -8.2 * 32.9