Integer Operations

Word Problems

100

The temperature fell a total of 12^oF in 4 hours. How much did it change each hour?

-3^oF

200

A football team lost 3 yards on each of the 4 plays they ran. What was their overall change in yardage?

-12 yards

300

A submarine is at a depth of -250 feet relative to sea level. It then ascends 75 feet. What is the submarine's new depth?

-175 feet

400

Sarah has a balance of $150 in her bank account. She writes a check for $200. What is her new bank account balance?

-$50

500

A hot air balloon is at an altitude of 300 feet. It descends at a rate of 50 feet per minute. What is its altitude after 5 minutes?

50 feet

600

The temperature in Chicago was -5^oF in the morning. By noon, the temperature rose by 12^oF, but by midnight, it dropped 15^oF from the noon temperature. What is the final temperature at midnight?

-8^oF

Integer Operations (+)

100

25 + (-7) = 

-18

200

-37 + (-3) =

(-40)  

300

(-15) + 15 =

0

400

-12 + (9) =

(-3)

500

8 + (-15) =

-7

600

-43 + 12 =

-31

Integer Operations (-)

100

15 - 38 =

-23

200

9 - (-20) =

29

300

32 - (-4) =

36

400

-97 - (-2) =

 -95

500

-49 - 2 =

-51

600

-18 - (-8) =

-10

Integer Operations (x)

100

- 6(- 4) =

24

200

8(-4) =

-32

300

-12(-5) =

60

400

9(-6) =

-54

500

-8(-7) =

56

600

12(-4) =

-52

Integer Operations (/)

100

-100 ÷ 4 =

-25

200

27 ÷ -3 =

-9

300

48 ÷ 6  =

8

400

-12 ÷ -4 =

3

500

-35 ÷ 5 =

-7

600

-88 ÷ -11 =

8

Mixed Operations (Use PEMDAS!)

100

(-14 + 4) -5 =

50

200

36 ÷ 3 + (-5) =

7

300

-5 + (-6) -4 =

-15

400

42 ÷ 2 + (-1) =

20

500

14(-2) - (-8) =

-20

600

[15 - (-7)] ÷ -2 =

-11