3: Basic Operations with Real Numbers Last updated Save as PDF Page ID 49283 Denny Burzynski & Wade Ellis, Jr. College of Southern Nevada via OpenStax CNX 3.1: Objectives 3.2: Signed Numbers 3.3: Absolute Value 3.4: Addition of Signed Numbers 3.5: Subtraction of Signed Numbers 3.6: Multiplication and Division of Signed Numbers 3.7: Negative Exponents 3.8: Scientific Notation 3.9: Summary of Key Concepts 3.10: Exercise Supplement 3.11: Proficiency Exam