Adding Integers
Add the integers
6 + (-4) =
2
Subtract the integers
7 - 10 =
-3
Multiply the integers
(-3) x 2 =
-6
Divide the integers
(-15) / 3 =
-5
When Steve woke up, his temperature was 102º F. Two hours later, it was 3º lower. What was his temperature then?
99
Add the integers
(-3) + 2 =
-1
Subtract the integers
-5 - 7 =
-12
Multiply the integers
3 x (-6) =
-18
Divide the integers
(-28) / 7 =
-4
An elevator is on the twentieth floor. It goes down 11 floors and then up 5 floors. What floor is the elevator on now?
6
Add the integers
(-5) + (-6) =
-11
Subtract the integers
6 -(-4) =
10
Multiply the integers
(-7) x (-7) =
49
Divide the integers
(-48) / (-6) =
8
A deep-sea exploring ship is pulling up a diver at the rate of 25 feet per minute. The diver is now at 200 feet below sea level. How deep was the diver 10 minutes ago?
- 450 ft or 450 ft below sea level
Add the integers
(-12) + (-4) + (-3) =
-19
Subtract the integers
(-9) - 4 - 1 =
-14
Multiply the integers
(-7) x (-6) =
42
Divide the integers
(-84) / (-7) =
12
Josie has $47 left in her checking account. If she writes a check for $55 and one for $12, what will Josie’s balance be?
$ -20
Add the integers
(-20) + 3 =
-17
Subtract the integers
(-4) - (-6) =
2
Multiply the integers
(-2) x (-2) =
4
Divide the integers
(-56) / 7 =
-8
A scuba diver swam 96 feet beneath the surface of the lake. He then climbs up 49 feet and dives back 12 ft to avoid a shark. What is his depth now?
He is at 133 below water level (- 133)