Prealgebra , Fifth Edition

Prealgebra, 5/e, is a consumable worktext that helps students make the transition from the concrete world of arithmetic to the symbolic world of algebra. The Aufmann team achieves this by introducing variables in Chapter 1 and integrating them throughout the text. This text's strength lies in the Aufmann Interactive Method, which enables students to work with math concepts as they're being introduced. Each set of matched-pair examples is organized around an objective and includes a worked example and a You Try It example for students. In addition, the program emphasizes AMATYC standards, with a special focus on real-sourced data. The Fifth Edition incorporates the hallmarks that make Aufmann developmental texts ideal for students and instructors: an interactive approach in an objective-based framework; a clear writing style; and an emphasis on problem solving strategies, offering guided learning for both lecture-based and self-paced courses. The authors introduce two new exercises designed to foster conceptual understanding: Interactive Exercises and Think About It exercises. 1. Whole numbers 1.1. Introduction to whole numbers 1.2. Addition and subtraction of whole numbers 1.3. Multiplication and division of whole numbers 1.4. Solving equations with whole numbers 1.5. The order of operations agreement 2. Integers 2.1. Introduction to integers 2.2. Addition and subtraction of integers 2.3. Multiplication and division of integers 2.4. Solving equations with integers 2.5. The order of operations agreement 3. Fractions 3.1. Least common multiple and greatest common factor 3.2. Introduction to fractions 3.3. Multiplication and division of fractions 3.4. Addition and subtraction of fractions 3.5. Solving equations with fractions 3.6. Exponents, complex fractions, and the order of operations agreement 4. Decimals and real numbers 4.1. Introduction to decimals 4.2. Addition and subtraction of decimals 4.3. Multiplication and division of decimals 4.4. Solving equations with decimals 4.5. Radical expressions 4.6. Real numbers 5. Variable expressions 5.1. Properties of real numbers 5.2. Variable expressions in simplest form 5.3. Addition and subtraction of polynomials 5.4. Multiplication of monomials 5.5. Multiplication of polynomials 5.6. Division of monomials 5.7. Verbal expressions and variable expressions 6. First-degree equations 6.1. Equations of the form x + a = b and ax = b 6.2. Equations of the form ax + b = c 6.3. General first-degree equations 6.4. Translating sentences into equations 6.5. The rectangular coordinate system 6.6. Graphs of straight lines 7. Measurement and proportion 7.1. The metric system of measurement 7.2. Ratios and rates 7.3. The U.S. customary system of measurement 7.4. Proportion 7.5. Direct and inverse variation 8. Percent 8.1. Percent 8.2. The basic percent equation 8.3. Percent increase and percent decrease 8.4. Markup and discount 8.5. Simple interest 9. Geometry 9.1. Introduction to geometry 9.2. Plane geometric figures 9.3. Triangles 9.4. Solids 10. Statistics and probability 10.1. Organizing data 10.2. Statistical measures 10.3. Introduction to probability final examination Appendix Glossary.