Real-Life Word Problems: Check Your Solutions for Reasonableness

A baker made 120 cookies and sold some. If he has 45 cookies left, how many cookies did he sell? Check if your answer makes sense.

• 60

• 90

• 100

• 75

Maria has 3 times as many marbles as John. If John has 15 marbles, how many does Maria have? Verify your solution by checking the multiplication.

• 15

• 30

• 60

• 45

A car travels 240 miles on 8 gallons of gas. How many miles can it travel on 1 gallon? Ensure your answer is reasonable by checking the division.

• 30 miles

• 50 miles

• 40 miles

• 20 miles

In a classroom, there are 24 students. If 2/3 of them are boys, how many girls are in the class? Check if your answer is reasonable by adding the number of boys and girls.

• 10

• 12

• 8

• 6

A farmer has 150 apples. He wants to pack them into boxes that hold 10 apples each. How many boxes does he need? Check if your answer is reasonable by multiplying the number of boxes by the apples per box.

• 12

• 15

• 20

• 10

Lily bought 5 notebooks for $15. How much does each notebook cost? Check your answer by multiplying the cost per notebook by the number of notebooks.

• $2

• $4

• $3

• $5

A movie theater has 200 seats. If 75% of the seats are filled, how many seats are empty? Verify your answer by calculating the total number of filled seats and subtracting from 200.

• 75

• 100

• 25

• 50

Tom has $50. He spends $x on a video game. If he has $20 left, how much did he spend? Check your solution by adding the amount spent to the amount left.

• 10

• 25

• 40

• 30

A recipe calls for 4 cups of flour to make 12 cookies. How much flour is needed for 30 cookies? Check if your answer is reasonable by comparing the ratios.

• 6 cups of flour

• 12 cups of flour

• 10 cups of flour

• 8 cups of flour

A school has 300 students. If 60% of them are girls, how many boys are there? Verify your answer by subtracting the number of girls from the total number of students.

• 180

• 150

• 120

• 90