*Basic Math and Pre-Algebra For Dummies*, 2nd Edition

Introduction 1

**Part 1: Getting Started with Basic Math and Pre-Algebra** 5

CHAPTER 1: Playing the Numbers Game 7

CHAPTER 2: It’s All in the Fingers: Numbers and Digits 23

CHAPTER 3: The Big Four: Addition, Subtraction, Multiplication, and Division 29

**Part 2: Getting a Handle on Whole Numbers** 47

CHAPTER 4: Putting the Big Four Operations to Work 49

CHAPTER 5: A Question of Values: Evaluating Arithmetic Expressions 63

CHAPTER 6: Say What? Turning Words into Numbers 75

CHAPTER 7: Divisibility 87

CHAPTER 8: Fabulous Factors and Marvelous Multiples 95

**Part 3: Parts of the Whole: Fractions, Decimals, and Percents** 109

CHAPTER 9: Fooling with Fractions 111

CHAPTER 10: Parting Ways: Fractions and the Big Four Operations 125

CHAPTER 11: Dallying with Decimals 149

CHAPTER 12: Playing with Percents 171

CHAPTER 13: Word Problems with Fractions, Decimals, and Percents 183

**Part 4: Picturing and Measuring — Graphs, Measures, Stats, and Sets** 195

CHAPTER 14: A Perfect Ten: Condensing Numbers with Scientific Notation 197

CHAPTER 15: How Much Have You Got? Weights and Measures 205

CHAPTER 16: Picture This: Basic Geometry 217

CHAPTER 17: Seeing Is Believing: Graphing as a Visual Tool 239

CHAPTER 18: Solving Geometry and Measurement Word Problems 247

CHAPTER 19: Figuring Your Chances: Statistics and Probability 259

CHAPTER 20: Setting Things Up with Basic Set Theory 271

**Part 5: The X-Files: Introduction to Algebra** 279

CHAPTER 21: Enter Mr X: Algebra and Algebraic Expressions 281

CHAPTER 22: Unmasking Mr X: Algebraic Equations 299

CHAPTER 23: Putting Mr X to Work: Algebra Word Problems 311

**Part 6: The Part of Tens 321**

CHAPTER 24: Ten Little Math Demons That Trip People Up 323

CHAPTER 25: Ten Important Number Sets to Know 329

Index 337

*Basic Math and Pre-Algebra Workbook For Dummies*, 3rd Edition

Introduction 1

**Part 1: Getting Started with Basic Math and Pre-Algebra 5**

CHAPTER 1: We've Got Your Numbers 7

CHAPTER 2: Smooth Operators: Working with the Big Four Operations 23

CHAPTER 3: Getting Down with Negative Numbers 37

CHAPTER 4: It's Just an Expression 49

CHAPTER 5: Dividing Attention: Divisibility, Factors, and Multiples 69

**Part 2: Slicing Things Up: Fractions, Decimals, and Percents 89**

CHAPTER 6: Fractions Are a Piece of Cake 91

CHAPTER 7: Fractions and the Big Four 109

CHAPTER 8: Getting to the Point with Decimals 143

CHAPTER 9: Playing the Percentages 165

**Part 3: A Giant Step Forward: Intermediate Topics 177**

CHAPTER 10: Seeking a Higher Power through Scientific Notation 179

CHAPTER 11: Weighty Questions on Weights and Measures 189

CHAPTER 12: Shaping Up with Geometry 203

CHAPTER 13: Getting Graphic: Xy-Graphs 223

**Part 4: The X Factor: Introducing Algebra 235**

CHAPTER 14: Expressing Yourself with Algebraic Expressions 237

CHAPTER 15: Finding the Right Balance: Solving Algebraic Equations 259

**Part 5: The Part of Tens 277**

CHAPTER 16: Ten Alternative Numeral and Number Systems 279

CHAPTER 17: Ten Curious Types of Numbers 287

Index 293