Real-Life Unknowns: Interpret & Check Your Solutions

A farmer has 120 apples. He sells some and has 45 left. How many apples did he sell?

• 90

• 30

• 60

• 75

Maria has 3 times as many marbles as John. If John has x marbles and together they have 48 marbles, how many marbles does John have?

• 16

• 20

• 8

• 12

A book costs $15. If you buy x books, and your total is $75, how many books did you buy?

• 6

• 4

• 5

• 3

A swimming pool can hold 5000 liters of water. If it currently has 3200 liters, how many more liters are needed to fill it?

• 2500 liters

• 2000 liters

• 1500 liters

• 1800 liters

A pizza is cut into 8 equal slices. If Sarah eats x slices and there are 3 slices left, how many slices did Sarah eat?

• 5

• 4

• 2

• 6

Tom has $50. He spends x dollars on a game and has $20 left. How much did he spend on the game?

• 25

• 30

• 40

• 15

A car travels 60 miles per hour. If it travels for x hours and covers 240 miles, how long did it travel?

• 2 hours

• 3 hours

• 5 hours

• 4 hours

In a class, there are 30 students. If x students are boys and the rest are girls, how many girls are in the class?

• 30 - (x + 5)

• 30 - x

• 30 + x

• x + 10

A recipe requires 2 cups of flour for x cookies. If you want to make 24 cookies, how many cups of flour do you need?

• 4 cups of flour

• 5 cups of flour

• 2 cups of flour

• 3 cups of flour

A concert ticket costs $40. If you buy x tickets and spend $200, how many tickets did you buy?

• 5

• 10

• 7

• 3