Checking Solutions: Mastering Algebra Word Problems

A farmer has 30 apples. He sells some and has 12 left. How many apples did he sell? Check your solution by adding the apples sold to the apples left.

• 15

• 20

• 10

• 18

Maria has twice as many marbles as John. If John has 15 marbles, how many does Maria have? Verify your answer by dividing Maria's marbles by 2.

• 15

• 45

• 25

• 30

A book costs $12. If you buy 3 books, how much do you spend in total? Check your solution by dividing the total cost by the price of one book.

• $48

• $30

• $24

• $36

Tom is 4 years older than his sister. If his sister is 10 years old, how old is Tom? Check your solution by subtracting 4 from Tom's age.

• 16

• 10

• 12

• 14

A pizza is cut into 8 slices. If you eat 3 slices, how many slices are left? Verify your answer by adding the slices eaten to the slices left.

• 4 slices left

• 6 slices left

• 5 slices left

• 3 slices left

A school has 120 students. If 30 students are in the band, how many are not in the band? Check your solution by adding the students in the band to those not in the band.

• 70

• 80

• 90

• 100

Lily has 50 stickers. She gives 15 to her friend. How many stickers does she have now? Check your solution by adding the stickers given away to the stickers left.

• 45

• 25

• 30

• 35

A box can hold 24 toys. If you have 60 toys, how many boxes do you need? Check your solution by multiplying the number of boxes by the capacity of each box.

• 2

• 4

• 5

• 3

A train travels 60 miles per hour. How far will it travel in 3 hours? Check your solution by dividing the total distance by the speed of the train.

• 240 miles

• 150 miles

• 90 miles

• 180 miles

If a shirt costs $20 and you have $100, how many shirts can you buy? Check your solution by multiplying the number of shirts by the cost of one shirt.

• 4 shirts

• 5 shirts

• 3 shirts

• 6 shirts