Multiplying and Dividing Positive and Negative Integers

Hello,

In our last post, we discussed how to add and subtract positive and negative integers.  Today, we are going to learn how to multiply and divide by positive and negative integers.  It is basically the same thing as multiplying and dividing normally, but we need to memorize some rules so we do not mix any signs up.

Rules to remember:

1.) Positive x positive = positive
2.) Negative x negative = positive
3.) Positive x negative = negative
4.) Negative x positive = negative
5.) Positive / positive = positive
6.) Negative / negative = positive
7.) Positive / negative = negative
8.) Negative / positive = negative

***Same sign = positive****
***Different sign = negative***

Get it? Let's practice!

Examples:

1.) (-5) x (-6) = ?
2.) (4) x (-2) = ?
3.) (9) x (9) = ?
4.) (-3) x (12) = ?
5.) (-36) / (9) = ?
6.) (80) / (-10)  = ?
7.) (-12) / (-6) = ?
8.) (56) / (7) = ?
9.) (12) x (-6) = ?
10.) (-11) / (11) = ?

Solutions:

1.) 30
2.) -8
3.) 81
4.) -36
5.) -4
6.) -8
7.) 2
8.) 8
9.) -2
10.) -1

The following links will help reiterate our lesson and will help you practice multiplying and dividing integers with negative signs:

1.) Examples and explanation with multiplying and dividing positive and negatives
2.) Practice worksheet with multiplying positive and negative integers; Answers at the bottom
3.) Practice worksheet with dividing positive and negative integers; Answers at the bottom