Developmental Mathematics

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  • Edition: 2nd
  • Format: Paperback
  • Copyright: 2010-10-19
  • Publisher: Pearson
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Elayn Martin-Gay firmly believes that every student can succeed, and her developmental math textbooks and video resources are motivated by this belief.Developmental Mathematics, Second Editionwas written to help readers effectively make the transition from arithmetic to algebra. The new edition offers new resources like theStudent Organizerand now includesStudent Resourcesin the back of the book to help students on their quest for success.

Author Biography

An award-winning instructor and best-selling author, Elayn Martin-Gay has taught mathematics at the University of New Orleans for more than 25 years. Her numerous teaching awards include the local University Alumni Association’s Award for Excellence in Teaching, and Outstanding Developmental Educator at University of New Orleans, presented by the Louisiana Association of Developmental Educators.


Prior to writing textbooks, Elayn developed an acclaimed series of lecture videos to support developmental mathematics students in their quest for success. These highly successful videos originally served as the foundation material for her texts. Today, the videos are specific to each book in the Martin-Gay series. Elayn also pioneered the Chapter Test Prep Video to help students as they prepare for a test–their most “teachable moment!”


Elayn’s experience has made her aware of how busy instructors are and what a difference quality support makes. For this reason, she created the Instructor-to-Instructor video series. These videos provide instructors with suggestions for presenting specific math topics and concepts in basic mathematics, prealgebra, beginning algebra, and intermediate algebra. Seasoned instructors can use them as a source for alternate approaches in the classroom. New or adjunct faculty may find the videos useful for review.


Her textbooks and acclaimed video program support Elayn's passion of helping everystudent to succeed.

Table of Contents

Chapter 1: The Whole Numbers

1.1     Tips for Success in Mathematics

1.2     Place Value, Names for Numbers, and Reading Tables

1.3     Adding Whole Numbers and Perimeter

1.4     Subtracting Whole Numbers

1.5     Rounding and Estimating

1.6     Multiplying Whole Numbers and Area

1.7     Dividing Whole Numbers

Integrated Review–Operations on Whole Numbers

1.8     An Introduction to Problem Solving

1.9     Exponents, Square Roots, and Order of operations


Chapter 2: Multiplying and Dividing Fractions

2.1 Introduction to Fractions and Mixed Numbers

2.2 Factors and Prime Factorization

2.3 Simplest Form of a Fraction

Integrated Review–Summary on Fractions, Mixed Numbers, and Factors

2.4 Multiplying Fractions and Mixed Numbers

2.5 Dividing Fractions and Mixed Numbers


Chapter 3: Adding and Subtracting Fractions

3.1 Adding and Subtracting Like Fractions

3.2 Least Common Multiple

3.3 Adding and Subtracting Unlike Fractions

Integrated Review–Operations on Fractions and Mixed Numbers

3.4 Adding and Subtracting Mixed Numbers

3.5 Order, Exponents, and the Order of Operations

3.6 Fractions and Problem Solving


Chapter 4: Decimals

4.1 Introduction to Decimals

4.2 Order and Rounding

4.3 Adding and Subtracting Decimals

4.4 Multiplying Decimals and Circumference of a Circle

Integrated Review–Operations on Decimals

4.5 Dividing Decimals and Order of Operations

4.6 Fractions and Decimals


Chapter 5 Percent

5.1 Ratio and Proportion

5.2 Introduction to Percent

5.3 Percents and Fractions

5.4 Solving Percent Problems Using Equations

5.5 Solving Percent Problems Using Proportions

Integrated Review-Ratio, Proportion, and Percent

5.6 Applications of Percent

5.7 Percent and Problem Solving: Sales Tax, Commission, and Discount

5.8 Percent and Problem Solving: Interest


Chapter 6 Geometry

6.1 Lines and Angles

6.2 Plane Figures and Solids

6.3 Perimeter

6.4 Area

6.5 Volume

Integrated Review-Geometry Concepts

6.6 Square Roots and the Pythagorean Theorem

6.7 Congruent and Similar Triangles


Chapter 7 Statistics and Probability

7.1 Reading Pictographs, Bar Graphs, Histograms, and Line Graphs

7.2 Reading Circle Graphs

Integrated Review-Reading Graphs

7.3 Mean, Median, and Mode

7.4 Counting and Introduction to Probability


Chapter 8 Real Numbers and Introduction to Algebra

8.1 Symbols and Sets of Numbers

8.2 Exponents, Order of Operations, and Variable Expressions

8.3 Adding Real Numbers

8.4 Subtracting Real Numbers

Integrated Review-Operations on Real Numbers

8.5 Multiplying and Dividing Real Numbers

8.6 Properties of Real Numbers

8.7 Simplifying Expressions


Chapter 9 Equations, Inequalities, and Problem Solving

9.1 The Addition Property of Equality

9.2 The Multiplication Property of Equality

9.3 Further Solving Linear Equations

Integrated Review-Solving Linear Equations

9.4 An Introduction to Problem Solving

9.5 Formulas and Problem Solving

9.6 Percent and Mixture Problem Solving

9.7 Linear Inequalities and Problem Solving


Chapter 10 Graphing Equations and Inequalities

10.1 The Rectangular Coordinate System

10.2 Graphing Linear Equations

10.3 Intercepts

10.4 Slope and Rate of Change

10.5 Equations of Lines

Integrated Review-Summary on Linear Equations

10.6 Introduction to Functions

10.76 Graphing Linear Inequalities in Two Variables

10.8 Direct and Inverse Variation


Chapter 11 Systems of Equations

11.1 Solving Systems of Linear Equations by Graphing

11.2 solving Systems of Linear Equations by Substitution

11.3 Solving Systems of Linear Equations by Addition

Integrated Review-Summary on Solving Systems of Equations

11.4 Systems of Linear Equations and Problem Solving

Chapter 12 Exponents and Polynomials

12.1 Exponents

12.2 Negative Exponents and Scientific Notation

12.3 Introduction to Polynomials

12.4 Adding and Subtracting Polynomials

12.5 Multiplying Polynomials

12.6 Special Products

Integrated Review- Exponents and Operations on Polynomials

12.7 Dividing Polynomials


Chapter 13 Factoring Polynomials

13.1 The Greatest Common Factor

13.2 Factoring Trinomials of the Form x² + bx + c

13.3 Factoring Trinomials of the Form ax² + bx + c

13.4 Factoring Trinomials of the Form ax² + bx + c by Grouping

13.5 Factoring Perfect Square Trinomials and the Difference of Two Squares

Integrated Review-Choosing a Factoring Strategy

13.6 Solving Quadratic Equations by Factoring

13.7 Quadratic Equations and Problem Solving


Chapter 14 Rational Expressions

14.1 Simplifying Rational Expressions

14.2 Multiplying and Dividing Rational Expressions

14.3 Adding and Subtracting Rational Expressions with the Same Denominator and Least Common Denominator

14.4 Adding and Subtracting Rational Expressions with Different Denominators

14.5 Solving Equations Containing Rational Expressions

Integrated Review-Summary on Rational Expression

14.6 Rational Equations and Problem Solving

14.7 Simplifying Complex Fractions


Chapter 15 Roots and Radicals

15.1 Introduction to Radicals

15.2 Simplifying Radicals

15.3 Adding and Subtracting Radicals

15.4 Multiplying and Dividing Radicals

Integrated Review-Simplifying Radicals

15.5 Solving Equations Containing Radicals

15.6 Radical Equation and Problem Solving


Chapter 16 Quadratic Equations

16.1 Solving Quadratic Equations by the Square Root Property

16.2 Solving Quadratic Equations by Completing the Square

16.3 Solving Quadratic Equations by the Quadratic Formula

Integrated Review-Summary Solving Quadratic Equations

16.4 Graphing Quadratic Equations in Two Variables

16.5 Interval Notation, Finding Domains and Ranges from Graphs, and Graphing Piecewise —Defined Functions.



Appendix A Further Algebraic Topics

A.1 Factoring Sums and Differences of Cubes

A.2 Sets and Compound Inequalities

A.3 Absolute Value Equations and Inequalities

A.4 The Distance and Midpoint Formulas

A.5 Writing Equations of Parallel and Perpendicular Lines

A.6 Nonlinear Inequalities in One Variable

A.7 Rational Exponents

A.8 Systems of Linear Inequalities


Appendix B Tables

B.1 Percent, Decimal, and Fraction Equivalents

B.2 Table of Squares and Square Roots

B.3 Compound Interest


Student Resources

Study Skills Builders

Bigger Picture–Study Guide Outline

Practice Final Exam

Answers to Selected Exercises

Rewards Program

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