Negative Numbers : Intro (LW)

In this section we will see how our number system can be extended to include negative numbers.
Look at the number line below:



The numbers to the left of zero are negative and the numbers to the right of zero are positive.



If we have two numbers, we say that one is less than the other if it is further left on the number line.
For example, "2 is less than 7" because 2 is further left. This can also be written as "2 < 7".




We say that one number is greater than another if it is further right on the number line.
For example, "3 is greater than -5" because 3 is further right. This can also be written as "3 > - 5".



http://www.cimt.plymouth.ac.uk/projects/mepres/book7/bk7i3/bk7_3i3.htm


cool...