All Operations with Integers

Add Integers

100

5 + (-5)

0

200

-3 + 12

9

300

-4 + (-9)

-13

400

-13 + 20

7

500

-9 + (-3) + 5

-7

Subtract Integers

100

-6 - 2

-8

200

-8 - 10

-18

300

3 - 10

-7

400

-17 - (-5)

-12

500

-3 - 4 - (-11)

4

Multiply Integers

100

-2 ⋅ (-5)

10

200

-3 ⋅ 15

-45

300

12 ⋅ (-12)

-144

400

(-8)(-6)(2)

96

500

(3)(-4)(5)

-60

Divide Integers

100

-15 ÷ (-3)

5

200

-12 ÷ 12

-1

300

-32 ÷ 8

-4

400

100 ÷ (-5)

-20

500

-20 ÷ (-4) ⋅ 5

25

Word Problems

100

During a cold week, the temperature on Monday was -4°F. By Tuesday, the temperature rose by 6°F. What was the temperature on Tuesday?

-4 + 6 = 2°F

200

The elevation at the base of a mountain is 1,200 feet. A hiker descends to a point that is 600 feet below sea level. What is the change in elevation?

1,200 - (-600) = 1,800 feet

300

A submarine dives at a rate of 20 feet per minute. How far will it descend in 4 minutes?

-20 x 4 = -80 feet

400

A diver dropped 72 feet below the surface in 6 minutes. If she descended at a constant rate, what was her change in depth per minute?

-72 ÷ 6 = -12 feet per minute

500

More than one operation:

Jake owed his friend $15. He earned $20 doing yard work and paid his friend back $10. How much money does Jake have now?

-15 + 20 - 10

-15 + 20 = 5

5 - 10 = -$5