General rules for multiplication

General rules for multiplication:

Positive x positive = positive

Negative x negative = positive

Positive x negative =negative

Negative x positive = negative

Positive x positive = positive:

Example:

x 4 =12

This two number are positive integers. So, answer is positive.

Negative x negative = positive

For example,

-4 x -3 = 12

This two number are negative integers .so, answer is positive.

Positive x negative =negative

For example,

4 x 3 =-12

One positive integer and one negative integer .so, answer is negative.

Negative x positive = negative

For example,

-4 x -3 =-12

One negative integer and one positive integer.so, answer is negative.