http://www.ck12.org Chapter 1. Units and Problem Solving
CHAPTER
(^1) Units and Problem Solving
Chapter Outline
1.1 Metric Units
1.2 UNITCONVERSIONS
Introduction
The Big Idea
Units identify what a specific number refers to. For instance, the number 42 can be used to represent 42 miles, 42
pounds, or 42 elephants! Numbers aremathematicalobjects, but units give themphysicalmeaning. Keeping track
of units can help you avoid mistakes when you work out problems.