Understand that a and -a are additive inverses and are located the same distance from zero on the number line; relate distance from zero to absolute value. 0706.2.4

Links verified on 1/15/2010

1. The Additive Inverse Property - Coolmath Pre algebra Lesson #6
• Other Properties of Arithmetic from Cool Math
2. Decimal Number Lines - Three whiteboard resources to assist in the teaching and learning of decimals and number lines; zero to one, zero to ten, and a decimal number line. or