**When you have finished
this page, try the Multiplying Positive and Negative
Numbers Quiz.**

**The multiplication of
positive and negative numbers has certain rules depending on the equation. Let's
take a look at an example with positive numbers and the number line. You notice
that the ball goes from the starting point zero to five, then ten, then fifteen
as five times three is fifteen. **

**In this example, negative
five is multiplied by three. Notice that this time the ball goes to the left
five, then ten, then fifteen. A negative five times three or three times a negative
five is a negative fifteen.**

**The next case is a bit
trickier to understand. A negative five is multiplied by a negative three with
an answer of a positive fifteen. This is because each time the negative five
is multiplied by another negative number, it is as such changing the negative
to a positive - taking away each time a negative and changing the number to
a positive. **