Adding integers =

The sign of the larger number is the sign of the answer.

+2 plus -82 = -80

Subtracting integers

Is the same as adding its opposite

-8 - +6

-8 + -6 = -14

dog and cat method:


Multiplying  and Dividing Integers

like signs are positive

different signs are negative

In other words, if the two integers have a different sign, then the product is negative,otherwise it's positive.