Additive Inverses
What is the additive inverse of 5?
-5
2
A shop earns $35 each day for 7 days. What is the total profit?
$245
A company lost $240 in January and $180 in February. In March, they earned $600. What is the company’s total profit or loss over these three months?
+$180
A negative times as positive equals a what?
Negative
What is the additive inverse of -12?
12
What is −15+(−10)?
-25
A person owes $45 and wants to pay it off equally over 9 months. How much should they pay each month?
$5
A football team gains 20 yards on the first play, loses 15 yards on the second play, and then gains 35 yards on the third play. What is the team’s total yardage after these plays?
40 yards
−3−(−10)
7
A scuba diver descends 30 feet underwater. To get back to the surface, what change in depth is required?
30 feet
The temperature was −5°F in the morning. By noon, the temperature increased by 12°F. What is the temperature now?
7 degrees
A game penalizes players −5 points for each mistake. If a player makes 8 mistakes, what is their total penalty?
-40
An elevator starts on the 5th floor, goes up 8 floors, then down 13 floors, and finally up 6 floors. What floor does the elevator end on?
6th floor
What is 100÷(−25)?
-4
If the temperature is currently -10°F, how many degrees does it need to rise to reach 0°F?
10 degrees
You owe your friend $15, but you pay them back $8. How much do you still owe?
$7
The temperature in a city decreased by 72 degrees over 9 days. If the temperature dropped the same amount each day, what was the daily temperature change?
8
Marcus owes $500 to a bank. He pays back $50 every week for 4 weeks but then borrows another $200. How much does Marcus owe now?
$500
What is 72÷(−8)?
-9
Combine the additive inverses of the following numbers and simplify:
6 and −4
-2
A submarine dives 40 feet below sea level and then rises 25 feet. Later, it dives 15 more feet. What is the submarine’s final position relative to sea level?
-30 feet
A person lost 36 pounds over 6 months by following a strict diet. What was their average weight loss per month?
6 pounds
A store reduces the price of a jacket by $30. The jacket’s new price is then reduced further by $15. If the jacket originally cost $120, what is the final price?
$75
25−(−10)+(−12)
23