## Introduction to Signed Numbers

The purpose of this lesson is to help students understand how increases and decreases are expressed and how to combine them. For instance, positive numbers show improvements, profit, or distance above zero. Negative numbers on the other hand show losses, decreasing values, and distance below zero. Being able to understand these values independently and by combining these values through addition and subtraction is a VITAL aspect of Algebra and is foundational for further topics.

#### GED Content Areas

Number and Ratios