Integer Operations

Addition

100

2 + 2

+4

200

5 + (-3)

+2

300

(-8) + (-4)

-12

400

You start with -20 points, then gain 8 points. How many points do you have now?

-12 points

500

The temperature was -5^oC in the morning. By noon, it rose by 7^oC. What's the temperature now?

+2^oC

Subtraction

100

(-3) - (-2)

-1

200

24 - (-8)

+32

300

(-15) - 9

-24

400

You start with -40 points in a quiz competition. You lose 10 points in the second round. What's your final score?

-50 points

500

(-78) - (-18)

-60 

Multiplication

100

9 x 8

+72

200

4 x (-3)

-12

300

(-5) x (-8)

+40

400

A snowstorm causes the temperature to drop by -3^oC every hour. After 10 hours, what's the total temperature change?

-30^oC

500

A company loses $750 every week for 10 weeks. How much has the company lost after 10 weeks?

-$7,500

Division

100

20 / (-5)

-4

200

(-72) / 9

-8

300

(-18) / (-3)

+6

400

A debt of -$500 is to be divided equally among 5 people. How much debt does each person take on?

-$100

500

Ms. Empey has 144 chocolates to give to her 12 students. How many chocolates will each student get?

+12

Order of Operations

100

12 + (-5) + 3

+10

200

(-9) x 12 x (-2)

+216

300

11 x (-6) - (-4)

-62

400

[(-360) / 2] x 3 + (-6)

-546

500

[63 / (-7)] [(-45) / (-9)] + 2

-43