Understanding Additive Inverses: Real-Life Applications

1. Sarah has $20. She spends some money and now has $12. What is the additive inverse of the amount she spent?

• $8

• -8

• $12

• $4

2. A temperature of -5 degrees Celsius is recorded. What is the additive inverse of this temperature?

• 5 degrees Celsius

• 0 degrees Celsius

• -5 degrees Celsius

• 10 degrees Celsius

3. A hiker climbs 300 meters up a mountain and then descends 300 meters. How can we represent the ascent and descent using additive inverses?

• +300 and -300 represent the ascent and descent as additive inverses.

• +300 and +300 represent the ascent and descent as additive inverses.

• -300 and -300 represent the ascent and descent as additive inverses.

• +300 and 0 represent the ascent and descent as additive inverses.

4. If a car travels 60 miles east and then 60 miles west, how can we express the distances traveled using additive inverses?

• +60 and +60

• -60 and -60

• The distances traveled can be expressed as +60 and -60.

• +30 and -30

5. A bank account has a balance of -$50. If $50 is deposited, what is the additive inverse of the initial balance?

• $100

• $50

• -$50

• $0

6. A diver is 10 meters below sea level. What is the additive inverse of the diver's depth?

• 5 meters

• 0 meters

• -10 meters

• 10 meters

7. A student scores -3 points on a quiz due to penalties. What is the additive inverse of the score?

• 0

• -3

• 3

• -1

8. If a plant grows 4 inches and then shrinks back down 4 inches, how can we represent this growth and shrinkage using additive inverses?

• 8

• 4

• -4

• 0

9. A roller coaster drops 150 feet and then rises back up 150 feet. How can we express the drop and rise using additive inverses?

• The drop and rise can be expressed as -150 and +150.

• +150 and +150

• -150 and -150

• 0 and 0

10. A debt of $200 is paid off. What is the additive inverse of the debt before it was paid?

• 200

• 100

• 300

• $200