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Prealgebra, 9th edition

  • Elayn Martin-Gay

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Elayn Martin-Gay believes that every student can succeed, and her learner-centered approach creates course materials that are beloved by students and instructors alike. Prealgebra helps you transition from arithmetic to algebra through her accessible writing and built-in study skills resources. With features like Concept Checks that help you check your own understanding of topics, and end-of-chapter material to get you ready for a test, this text is written to help you succeed.

The 9th Edition continues Elayn Martin-Gay's focus on your success with an entirely new video program that blends study tips seamlessly into the math instruction, updated applications pulled from real life, and more.

Published by Pearson (July 12th 2024) - Copyright © 2025

ISBN-13: 9780138197421

Subject: Developmental Math

Category: Basic Math or Prealgebra

(Note: Each chapter concludes with Group Activity, Vocabulary Check, Chapter Highlights, Chapter Review, Getting Ready for the Test, and Chapter Test. Chapters 2-10 include Cumulative Review.)

1. The Whole Numbers

  • 1.1 Study Skill Tips for Success in Mathematics
  • 1.2 Place Value, Names for Numbers, and Reading Tables
  • 1.3 Adding and Subtracting Whole Numbers, and Perimeter
  • 1.4 Rounding and Estimating
  • 1.5 Multiplying Whole Numbers and Area
  • 1.6 Dividing Whole Numbers
  • Mid-Chapter Review: Operations on Whole Numbers
  • 1.7 Exponents and Order of Operations
  • 1.8 Introduction to Variables, Algebraic Expressions, and Equations

2. Integers and Introduction to Solving Equations

  • 2.1 Introduction to Integers
  • 2.2 Adding Integers
  • 2.3 Subtracting Integers
  • 2.4 Multiplying and Dividing Integers
  • Mid-Chapter Review: Integers
  • 2.5 Order of Operations
  • 2.6 Solving Equations: The Addition and Multiplication Properties

3. Solving Equations and Problem Solving

  • 3.1 Simplifying Algebraic Expressions
  • 3.2 Solving Equations: Review of the Addition and Multiplication Properties
  • Mid-Chapter Review: Expressions and Equations
  • 3.3 Solving Linear Equations in One Variable
  • 3.4 Linear Equations in One Variable and Problem Solving

4. Fractions and Mixed Numbers

  • 4.1 Introduction to Fractions and Mixed Numbers
  • 4.2 Factors and Simplest Form
  • 4.3 Multiplying and Dividing Fractions
  • 4.4 Adding and Subtracting Like Fractions, Least Common Denominator, and Equivalent Fractions
  • 4.5 Adding and Subtracting Unlike Fractions
  • Mid-Chapter Review: Summary on Fractions and Operations on Fractions
  • 4.6 Complex Fractions and Review of Order of Operations
  • 4.7 Operations on Mixed Numbers
  • 4.8 Solving Equations Containing Fractions

5. Decimals

  • 5.1 Introduction to Decimals
  • 5.2 Adding and Subtracting Decimals
  • 5.3 Multiplying Decimals and Circumference of a Circle
  • 5.4 Dividing Decimals
  • Mid-Chapter Review: Operations on Decimals
  • 5.5 Fractions, Decimals, and Order of Operations
  • 5.6 Solving Equations Containing Decimals
  • 5.7 Decimal Applications: Mean, Median, and Mode

6. Ratio, Proportion, and Triangle Applications

  • 6.1 Ratios and Rates
  • 6.2 Proportions
  • Mid-Chapter Review: Ratio, Rate, and Proportion
  • 6.3 Proportions and Problem Solving
  • 6.4 Square Roots and the Pythagorean Theorem
  • 6.5 Congruent and Similar Triangles

7. Percent

  • 7.1 Percents, Decimals, and Fractions
  • 7.2 Solving Percent Problems with Equations
  • 7.3 Solving Percent Problems with Proportions
  • Mid-Chapter Review: Percent and Percent Problems
  • 7.4 Applications of Percent
  • 7.5 Percent and Problem Solving: Sales Tax, Commission, and Discount
  • 7.6 Percent and Problem Solving: Interest

8. Graphing and Introduction to Statistics and Probability

  • 8.1 Pictographs, Bar Graphs, Histograms, Line Graphs, and Introduction to Statistics
  • 8.2 Circle Graphs
  • 8.3 The Rectangular Coordinate System and Paired Data
  • Mid-Chapter Review: Reading Graphs
  • 8.4 Graphing Linear Equations in Two Variables
  • 8.5 Counting and Introduction to Probability

9. Geometry and Measurement

  • 9.1 Lines and Angles
  • 9.2 Perimeter
  • 9.3 Area, Volume, and Surface Area
  • Mid-Chapter Review: Geometry Concepts
  • 9.4 Linear Measurement
  • 9.5 Weight and Mass
  • 9.6 Capacity
  • 9.7 Temperature and Conversions Between the U.S. and Metric Systems

10. Exponents and Polynomials

  • 10.1 Adding and Subtracting Polynomials
  • 10.2 Multiplication Properties of Exponents
  • Mid-Chapter Review: Operations on Polynomials
  • 10.3 Multiplying Polynomials
  • 10.4 Introduction to Factoring Polynomials

Appendix A: Tables

  • A.1 Tables of Geometric Figures
  • A.2 Table of Percents, Decimals, and Fraction Equivalents
  • A.3 Table on Finding Common Percents of a Number
  • A.4 Table of Squares and Square Roots

Appendix B: Quotient Rule and Negative Exponents

Appendix C: Scientific Notation

Appendix D: Geometric Formulas

Student Resources:

  • Study Skills Builders
  • Bigger Picture–Study Guide Outline
  • Practice Final Exam
  • Answers to Selected Exercises
  • Solutions to Selected Exercises
  • Video Answer Section