Solving Real-Life One-Step Equations: Find the Unknowns

Maria has some apples. If she buys 5 more apples and now has 12 apples, how many apples did she start with?

• 3

• 7

• 10

• 5

A book costs $x. If you buy 3 books and spend $15, what is the cost of one book?

• $7

• $3

• $10

• $5

Tom has $20. He spends $x on a toy. If he has $12 left, how much did he spend on the toy?

• 10

• 8

• 5

• 15

A box contains some chocolates. If you eat 4 chocolates and there are 10 left, how many chocolates were in the box originally?

• 10

• 12

• 14

• 16

Lily is x years old. If her sister is 3 years older than her, how old is her sister?

• x + 3

• x + 2

• x - 3

• x + 5

A car travels at a speed of 60 miles per hour. If it travels for x hours and covers 180 miles, how long did it travel?

• 3 hours

• 4 hours

• 2 hours

• 5 hours

In a classroom, there are x students. If 5 more students join and the total becomes 30, how many students were there initially?

• 20

• 25

• 15

• 10

A pizza is cut into x slices. If you eat 2 slices and there are 6 slices left, how many slices was the pizza cut into?

• 10

• 8

• 4

• 6

A gardener has x plants. If he buys 7 more plants and now has 25 plants, how many plants did he have before?

• 15

• 18

• 20

• 10

A movie ticket costs $x. If you buy 4 tickets for $32, what is the price of one ticket?

• $8

• $6

• $10

• $12