September 3, 2009
No CommentsAn Overview of Negative Numbers
Description
This video is all about how to add and subtract negative numbers from other negative numbers and positive numbers. It clearly illustrates the difference between a negative number and a positive number. Many examples and sample problems are provided.
Overview
Negative numbers are the opposite of the positive numbers that we are used to. The bigger a number with a negative, then the small the number really is (ex: -5 is smaller than -2). Remembering that a negative number is an opposite, when you use it, you do just that – the opposite. x + -y = x – y. x – (-y) = x + y. -x – (-y) = -x + y. A negative plus a negative is exactly the same as a positive plus a positive, but with a negative sign. For multiplication and division, two negatives cancel each other out to be positive, and one negative and one positive will be negative.
