Multiplication and Division of Signed Numbers

Question 1

How to do multiplication and division of signed numbers with the same sign?

Answer 1

If the signs of the two numbers being multiplied or divided are the same, the sign of the result is positive.

Question 2

How to do multiplication and division of signed numbers with a different sign?

Answer 2

If the signs of the two numbers being multiplied or divided are different, the sign of the result is negative.