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- Addition - Help
**- Rule for same signs**

((-3)) + ((-5)) = -8

((+3)) + ((+5)) = +8

Add the absolute values of the numbers.

The result gets the common sign.**- Rule for different signs**

((-8)) + ((+5)) = -3

((-6)) + ((+9)) = +3

Subtract the absolute values of the numbers.

The result gets the sign of the larger absolute value. - Multiplication - Help
**- same signs**

((-3)) × ((-5)) = +15

((+3)) × ((+5)) = +15

Multiply the absolute values of the numbers.

The sign of the result is +.**- different signs**

((-8)) × ((+5)) = -40

((+6)) × ((-5)) = -30

Multiply the absolute values of the numbers.

The sign of the result is -.