Mastering Additive Inverses: Problem Solving for 7th Grade

1. Sarah has 15 apples. She gives some apples to her friend and now has 8 apples left. How many apples did she give away? (Identify the additive inverse)

• 7

• 3

• 10

• 5

2. A temperature is recorded at -5 degrees Celsius. If the temperature rises by a certain amount to reach 3 degrees Celsius, what is the amount of increase? (Solve using additive inverses)

• 8 degrees Celsius

• -3 degrees Celsius

• 5 degrees Celsius

• 10 degrees Celsius

3. Tom scored 20 points in a game but lost 12 points due to penalties. What is his final score? (Identify the additive inverse)

• 8

• 10

• 5

• 15

4. A bank account has a balance of $50. After a withdrawal, the balance is $20. How much was withdrawn? (Use additive inverses to solve)

• 10

• 25

• 40

• 30

5. Lisa had $100. After spending some money, she has $65 left. How much did she spend? (Identify the additive inverse)

• 35

• 40

• 25

• 50

6. The temperature dropped from 10 degrees to -2 degrees. What was the total drop in temperature? (Solve using additive inverses)

• 12 degrees

• 14 degrees

• 10 degrees

• 8 degrees

7. A car travels 120 miles but then returns 30 miles back. What is the net distance traveled? (Identify the additive inverse)

• 150 miles

• 60 miles

• 120 miles

• 90 miles

8. A student scored 85 on a test but then lost 15 points due to a grading error. What is the student's adjusted score? (Use additive inverses to solve)

• 90

• 70

• 80

• 75

9. A gardener planted 50 flowers but 20 of them died. How many flowers are still alive? (Identify the additive inverse)

• 10

• 20

• 40

• 30

10. A person has a debt of $200. They pay off $75. What is the remaining debt? (Solve using additive inverses)

• $125

• $100

• $175

• $150