The Lial Serieshas helped thousands of students succeed in developmental mathematics by providing the best learning and teaching support to students and instructors.

**Marge Lial** became interested in math at an early age–it was her favorite subject in the first grade! Marge's intense desire to educate both her students and herself inspired the writing of numerous best-selling textbooks. Marge, who received Bachelor's and Master's degrees from California State University at Sacramento, was affiliated with American River College. An avid reader and traveler, her travel experiences often found their way into her books as applications, exercise sets, and feature sets. She was particularly interested in archeology; trips to various digs and ruin sites produced some fascinating problems for her textbooks involving such topics as the building of Mayan pyramids and the acoustics of ancient ball courts in the Yucatan. We dedicate the new editions of the paperback developmental math series to Marge in honor of her contributions to the field in which she helped thousands of students succeed.

**Stan Salzman** is a long time resident of Sacramento, California. Stan has taught at American River College for many years, where he was a member of the business department. He is the author of *Business Math* and *Essential Math*, published by Pearson Education, Inc., and is coauthor of *Basic Math*.

**Diana Hestwood** lives in Minnesota and has taught at Metropolitan Community College in Minneapolis for two decades. She has done research on the student brain and is an expert on study skills. She is the author of Lial/Hestwood’s *Prealgebra* and coauthor of Lial/Salzman/Hestwood’s *Basic Math *and Lial/Hestwood/Hornsby/McGinnis’s *Prealgebra and Introductory Algebra*.

**1. Whole Numbers**

1.1 Reading and Writing Whole Numbers

1.2 Adding Whole Numbers

1.3 Subtracting Whole Numbers

1.4 Multiplying Whole Numbers

1.5 Dividing Whole Numbers

1.6 Long Division

1.7 Rounding Whole Numbers

1.8 Exponents, Roots, and Order of Operations

1.9 Reading Pictographs, Bar Graphs, and Line Graphs

1.10 Solving Application Problems

**2. Multiplying and Dividing Fractions**

2.1 Basics of Fractions

2.2 Mixed Numbers

2.3 Factors

2.4 Writing a Fraction in Lowest Terms

2.5 Multiplying Fractions

2.6 Applications of Multiplication

2.7 Dividing Fractions

2.8 Multiplying and Dividing Mixed Numbers

**3. Adding and Subtracting Fractions**

3.1 Adding and Subtracting Like Fractions

3.2 Least Common Multiples

3.3 Adding and Subtracting Unlike Fractions

3.4 Adding and Subtracting Mixed Numbers

3.5 Order Relations and the Order of Operations

**4. Decimals**

4.1 Reading and Writing Decimal Numbers

4.2 Rounding Decimal Numbers

4.3 Adding and Subtracting Decimal Numbers

4.4 Multiplying Decimal Numbers

4.5 Dividing Decimal Numbers

4.6 Fractions and Decimals

**5. Ratio and Proportion**

5.1 Ratios

5.2 Rates

5.3 Proportions

5.4 Solving Proportions

5.5 Solving Application Problems with Proportions

**6. Percent**

6.1 Basics of Percent

6.2 Percents and Fractions

6.3 Using the Percent Proportion and Identifying the Components in a Percent Problem

6.4 Using Proportions to Solve Percent Problems

6.5 Using the Percent Equation

6.6 Solving Application Problems with Percent

6.7 Simple Interest

6.8 Compound Interest

**7. Measurement**

7.1 Problem Solving with U.S. Measurement Units

7.2 The Metric System – Length

7.3 The Metric System – Capacity and Weight (Mass)

7.4 Problem Solving with Metric Measurement

7.5 Metric—U.S. Measurement Conversions and Temperature

**8. Geometry**

8.1 Basic Geometric Terms

8.2 Angles and Their Relationships

8.3 Rectangles and Squares

8.4 Parallelograms and Trapezoids

8.5 Triangles

8.6 Circles

8.7 Volume

8.8 Pythagorean Theorem

8.9 Similar Triangles

**9. Basic Algebra**

9.1 Signed Numbers

9.2 Adding and Subtracting Signed Numbers

9.3 Multiplying and Dividing Signed Numbers

9.4 Order of Operations

9.5 Evaluating Expressions and Formulas

9.6 Solving Equations

9.7 Solving Equations with Several Steps

9.8 Using Equations to Solve Application Problems

**10. Statistics**

10.1 Circle Graphs

10.2 Bar Graphs and Line Graphs

10.3 Frequency Distributions and Histograms

10.4 Mean, Median, and Mode