Adding Integers
Dr Thompson owes 8 students $5 of class cash each. What integer represents her total debt?
-40
A diver was 60 feet below the surface of the water. She dove down another 18 feet. When she saw a cool fish, she swam up 33 feet. What integer represents her distance from the surface now?
-60 + -18 = -78
-78 + 33 = -45 feet from the surface.
14 + (-20)=
-6
-7-10=
Tristan is playing a game. He earns 12 points in the first round. He lost 8 points in the second round and then gained 15 in the third round. How many points did he end the third round with?
12 - 8 = 4
4 + 15 = 19
9 + -19
(-10)
12-(-19)
31
-4 * -9
36
-10/-10
1
A submarine is located 120 meters below sea level. It rises at a rate of 6 meters per minute. How many minutes will it take for the submarine to reach sea level?
20 minutes
2 + (-8)
-6
-9 - 8
-17
7 * -8
-56
-132/12
-11
A stock trader bought 40 shares of a company. After a week, the value of each share decreased by $3. How much money did the trader lose in total?
40 x -3 = -120