Review: Integer Operations

Rules and Definitions

1

negative + negative =

negative

1

The rule for subtracting Integers

Keep, Change, Change, then add.

1

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

positive 

1

What is the RULE for  adding with different signs

Subtract the numbers, keep the sign of the larger.

1

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

negative 

Integer Operations (+)

1

25 + 27 = 

52

1

-37 + (-13) =

What is the RULE and answer

(-50)  Add and keep the sign.

1

(-15) + 15 =

0

1

-12 + (9) =

(-3)

1

8+(-15)=

-7

Integer Operations (-)

1

38 - 15

23

1

9 - (-20)=

29

1

32 - (-14) =

46

1

-20 - (-12) =

What is the RULE and answer

 -8 

Keep, Change, Change

1

-49 - 22 =

Name the RULE and answer

(-71)

Keep Change Change

Integer Operations (*)

1

100*4

400

1

8*(-4)

(-32)

1

-12 * 5 =

(-60)

1

5 * (-25) =

(-125)

1

-13 * (-4)

52

Integer Operations (/)

1

100 / 4 =

25

1

8 / (-4) =

(-2)

1

-48 / 6 = 

(-8)

1

-120 / -40 =

3

1

-350 / 50 =

(-7)