# Integer Operations

### Adding, Subtracting, Multiplying and Dividing Integers

## Rules for Adding Integers

If the integers have different signs you subtract and stay with the sign of the higher integer.

For example:

Same sign 4 + 4 = 8

Different sign -4 + 6 = 2

Same sign -1 + -1 = -2

## Rules for Subtracting Integers

If the integers have different signs you subtract and stay with the sign of the higher integer.

For example:

Same signs 4 - 4 = 0

Different signs -8 - 6 = -14

Same sign -7 - (-3) = -4

## Rules for Multiplying Integers

If the integers have unlike signs the answer is negative.

For example:

Same signs 5 x 5 = 25

Different signs -8 x 4 = -32

Same signs -6 x -4 =24

## Rules for Dividing Integers

If the integers have unlike signs the answer is negative.

For example :

Same signs 10 / 2 = 5

Different signs -36 / 6 = -6

Same signs -9 / -3 = 3

## Bibliography

http://www.virtualnerd.com/images/Tutorial/PreAlg_01_01_0004-diagram_thumb-lg.png

http://www.passyworld.com/passyImagesTwelve/MultRulesTwo500x364GIF.gif

http://image01.ipracticemath.com/content/imageslm/integer/dividing_integers.png