Adding, Subtracting, Multiplying, and Dividing Integers

Addition

100

435+335

What is 770

200

4+(-4)

What is 0

300

-15+(-17)

What is (-2)

400

-35+27

What is -8

500

-435+847

What is 412

Subtraction

100

300-250

What is 50

200

5-(-4)

What is 9

300

-54-13

What is 41

400

35-(-60)

What is 95

500

30-(-60)-32

What is 58

Multiplication

100

8*8

What is 64

200

-9*12

What is 108

300

-15*-7

What is 105

400

32*-21

What is -672

500

(-4+8)*(-5)

What is -20

Division

100

45/-5

What is -9

200

-12/-6

What is 2

300

-121/11

What is -11

400

0/30

What is 0

500

-12/0

What is Undefined

Word Problems

100

Joe said -75+54 was 129.Is he wrong, and if so then explain his error and say the real answer to the problem.

What is yes, because he added 75+54 instead of subtracting 54 from 75. The 75 is larger so the answer is a negative. Answer is -21

200

Joe was 2,000 feet above sea level. His friend Bob was 1,568 feet below sea level. Joe wanted to know what the distance was between thew. What was it?

What is 3,568

300

Christine owns 4 shares if a certain stock. Yesterday the total value of her shares went down by 40 dollars. What was the change in value for each share?

What is -10, or lost $10.00 per share

400

Karen owns 20 shares of a certain stock. Yesterday the value of each share went up by 4 dollars. What was the total change in value of her shares?

What is $80.00

500

If 1 Zilf is = to 10 Zmifs, and 1 Zmifs is = to 10 Zorks, how many Zorks would 10 Zilfs be?

What is 1,000