Source: Kaplan GED Test Prep 2022–2023 by Caren Van Slyke Authority Tier: Commercial Preparation (
TIER_3_COMMERCIAL) | License: Restricted Reference (RESTRICTED) Coverage: Chapter 5: Algebra Basics, Expressions, and Polynomials (Pages 686–750) Curriculum Standard: High School Equivalency Preparation
Kaplan Reference: Chapter 5: Algebra Basics, Expressions, and Polynomials
Lesson 1: The Number Line and Signed Numbers
(Page 686)
CHAPTER 5 Algebra Basics, Expressions, and Polynomials Lesson 1: The Number Line and Signed Numbers Key Ideas To add numbers with like signs, add and keep the same sign. To add numbers with unlike signs, find the difference and use the sign from the larger number. To subtract signed numbers, change the operation to addition and change the sign of the number you are subtracting. Understanding Signed Numbers Signed numbers include zero, all positive numbers, and all negative numbers. Zero is neither positive nor negative. On a number line, the positive