Integer Operations

Adding Integers

100

-6 + -4 =

-10

200

-14 + 29 =

15

300

38 + -27 =

11

400

7 + -21 =

- 14

500

-18 + -9 + 28 = 

1

Subtracting Integers

100

-9 - 7 =

-16

200

18 - (-11) =

29

300

-9 - (-14) = 

5

400

10 - (-9) - 9 =

10

500

-12 - 8 - (-5) =

-15

Integer Word Problems

100

You get a glass of water from the refrigerator that has a temperature of 60^o F.  Then you add ice, which decreases the water's temperature by 18^o F.  What is the new temperature of your glass of water?  

42^o F

200

A number added to 5 is -11.  Find the number.

-16

300

The weather in Vermont suggested that the average temperature in January last year increased from -8^o to 3^o.  What is the change in temperature?

11^o

400

Ethan started the month with $280 in his bank account.  He deposited $80 that he received from birthday money and then spent $400 to purchase a new MacBook the next weekend.  What's the balance in his bank account now?

$-40

500

Rayana purchased a pair of jeans priced for $31.99 and a shirt priced for $19.49.  At the register, she had a coupon for $8 off her purchase.  If she paid with a $50 bill, how much was her change back?

$6.52

Mixed Op with Integers

100

-12 + 5 - (-17) =

10

200

15.5 - (-6) - 3.5 + 5 =

23

300

-55 + 13 - (-17) + 25

0

400

(2/5) + (1/4) - (1/10) =

11/20

500

1/2 + 6 - ( - 6/8) - (5/4) =

6