Integers Review

Adding

100

−8+15

7

200

24+(−37)

-13

300

−18+(−29)

-47

400

−45+68

23

500

32+(−18)+14

28

Subtracting

100

18−27

-9

200

−15−18

-33

300

42−58

-16

400

−27−15

-42

500

42-58-16

-32

Multiplying

100

(−8)(4)

-32

200

9(-11)

-99

300

(-12)(-12)

144

400

(-15)(-8)(2)

240

500

(-9)(4)(-2)(-4)

-288

Dividing

100

−56÷7

-8

200

81÷(−9)

-9

300

−132÷(−11)

12

400

−225÷15

-15

500

180÷(−15)

-12

Word Problems

100

The temperature is 12°F. It drops 19°. What is the new temperature?

-7°

200

A submarine is 35 feet below sea level. It rises 22 feet. Where is it now?

-13 feet

300

A football team loses 8 yards on each of 7 plays. What is the total change in yards?

-56 yards

400

An elevator starts on floor -4. It goes up 15 floors, then down 9 floors. What floor is it on now?

2nd floor

500

A bank account has -$30. You deposit $50. Then, withdraw $10. Finally, your mom zelles you $75. What is your new balance?

$85