Review: Integer Operations

Rules and Definitions

100

What is absolute value?

The distance a number is from zero.

200

A negative + negative = 

= negative

300

Multiplying and dividing integers with the same sign will result in a ______ answer

positive 

400

What sign will my answer have when I add two integers with the larger number being negative? 

Example:

1 +- 3

My answer is negative. 

500

Multiplying and dividing integers with different signs will result in a ______ answer

negative 

Integer Operations (+)

100

25 + 27 = 

52

200

-37 + (-13) =

(-50)  

300

(-15) + 15 =

0

400

-12 + (9) =

(-3)

500

8+(-15)=

-7

Integer Operations (-)

100

38 - 15

23

200

9 - (-20)=

29

300

32 - (-14) =

46

400

-20 - (-12) =

 -8

500

-49 - 22 =

(-71)

Integer Operations (*)

100

12(4)

48

200

8(-4)

-32

300

(-12)(5) =

-60

400

5(-25) =

-125

500

(-13)(-4)

52

Integer Operations (/)

100

100 / 4 =

25

200

8 / (-4) =

(-2)

300

-48 / 6 = 

(-8)

400

-120 / -40 =

3

500

-350 / 50 =

(-7)

Evaluating Expressions

100

The value of x + 22  when x = 5

27

200

The value of 7b - a   when a = 10 and b = 4

18

300

The value of 8x  when x = 11

88

400

The value of a(b + c)   when a = -2,  b = 5, and c = 2

-14

500

The value of c² - d   when c = 3  and d = -10

19