Real Numbers

Chapter Sections 1.1 – Study Skills for Success in Mathematics 1.2 – Problem Solving 1.3 – Fractions 1.4 – The Real Number System 1.5 – Inequalities and Absolute Value 1.6 – Addition of Real Numbers 1.7 – Subtraction of Real Numbers 1.8 – Multiplication and Division of Real Numbers 1.9 – Exponents, Parentheses and Order of Operations 1.10 – Properties of the Real Number System

Subtraction of Real Numbers

Subtracting In general, if a and b represent any two real numbers, then a – b = a + (-b) Examples 1 and 2: 1.) 9 – (+4) =9 + (– 4) = 5 2.) 5 – 3 = 5 + (– 3) = 2

More Examples Example: 3 1.) 3 – 10 =3 + (– 10) = -7 2.) -6 – 4 = -6 + (– 4) = -10