Solving Real-Life One-Step Equations: Check Your Work!

1. Sarah has 12 apples. She gives away some apples to her friend and now has 8 left. Write an equation to represent this situation and solve for the number of apples she gave away.

• 4

• 2

• 10

• 6

2. A book costs $15. If you have $x and you buy the book, you will have $5 left. Write an equation to find out how much money you had before buying the book.

• 20

• 10

• 25

• 30

3. Tom is 3 years older than his sister. If his sister is x years old, write an equation to express Tom's age and find out how old he is if his sister is 10.

• Tom is 13 years old.

• Tom is 10 years old.

• Tom is 12 years old.

• Tom is 15 years old.

4. A car travels 60 miles per hour. How long will it take to travel 180 miles? Write an equation to represent this situation and solve for the time.

• 5 hours

• 4 hours

• 2 hours

• 3 hours

5. A rectangle has a length of 10 meters and a width of x meters. If the perimeter of the rectangle is 40 meters, write an equation to find the width.

• x = 15

• x = 10

• x = 20

• x = 5

6. Lisa bought 5 packs of gum for $x each and spent a total of $20. Write an equation to find the cost of each pack of gum.

• x = 4

• x = 3

• x = 5

• x = 2

7. A gardener has 24 flowers. He plants some in the garden and has 10 left. Write an equation to find out how many flowers he planted.

• 14

• 12

• 18

• 16

8. A movie ticket costs $12. If you have $y and you buy 3 tickets, you will have $6 left. Write an equation to find out how much money you had before buying the tickets.

• 42

• 36

• 30

• 48

9. A box contains x chocolates. If you eat 4 chocolates, you will have 10 left. Write an equation to find out how many chocolates were in the box originally.

• 12

• 16

• 14

• 10

10. A train leaves the station at 2 PM and travels at a speed of 80 miles per hour. Write an equation to find out how far the train will travel by 4 PM.

• 120 miles

• 200 miles

• 80 miles

• 160 miles