Basic Math & Pre-Algebra Workbook For Dummies with Online Practice

Basic Math & Pre-Algebra Workbook For Dummies with Online Practice

by Mark Zegarelli
Basic Math & Pre-Algebra Workbook For Dummies with Online Practice

Basic Math & Pre-Algebra Workbook For Dummies with Online Practice

by Mark Zegarelli


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Master the fundamentals first for a smoother ride through math

Basic Math & Pre-Algebra Workbook For Dummies is your ticket to finally getting a handle on math! Designed to help you strengthen your weak spots and pinpoint problem areas, this book provides hundreds of practice problems to help you get over the hump. Each section includes a brief review of key concepts and full explanations for every practice problem, so you'll always know exactly where you went wrong. The companion website gives you access to quizzes for each chapter, so you can test your understanding and identify your sticking points before moving on to the next topic. You'll brush up on the rules of basic operations, and then learn what to do when the numbers just won't behave—negative numbers, inequalities, algebraic expressions, scientific notation, and other tricky situations will become second nature as you refresh what you know and learn what you missed.

Each math class you take builds on the ones that came before; if you got lost somewhere around fractions, you'll have a difficult time keeping up in Algebra, Geometry, Trigonometry, and Calculus—so don't fall behind! This book provides plenty of practice and patient guidance to help you slay the math monster once and for all.

  • Make sense of fractions, decimals, and percentages
  • Learn how to handle inequalities, exponents, square roots, and absolute values
  • Simplify expressions and solve simple algebraic equations
  • Find your way around a triangle, circle, trapezoid, and more

Once you get comfortable with the rules and operations, math takes on a whole new dimension. Curiosity replaces anxiety, and problems start feeling like puzzles rather than hurdles. All it takes is practice. Basic Math & Pre-Algebra Workbook For Dummies is your ultimate math coach, with hundreds of guided practice practice problems to help you break through the math barrier.

Product Details

ISBN-13: 9781119357513
Publisher: Wiley
Publication date: 04/17/2017
Series: For Dummies Books
Edition description: Workbook
Pages: 320
Sales rank: 162,412
Product dimensions: 7.90(w) x 9.90(h) x 0.80(d)

About the Author

Mark Zegarelli is a math and test prep teacher who has written a wide variety of basic math and pre-algebra books in the For Dummies series.

Table of Contents

Introduction 1

About This Book 1

Foolish Assumptions 2

Icons Used in This Book 2

Beyond the Book 3

Where to Go from Here 3

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

Chapter 1: We’ve Got Your Numbers 7

Getting in Place with Numbers and Digits 8

Rollover: Rounding Numbers Up and Down 10

Using the Number Line with the Big Four 12

The Column Lineup: Adding and Subtracting 14

Multiplying Multiple Digits 15

Cycling through Long Division 16

Solutions to We’ve Got Your Numbers 19

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

Switching Things Up with Inverse Operations and the Commutative Property 24

Getting with the In-Group: Parentheses and the Associative Property 27

Becoming Unbalanced: Inequalities 29

Special Times: Powers and Square Roots 31

Answers to Problems in Smooth Operators 34

Chapter 3: Getting Down with Negative Numbers 37

Understanding Where Negative Numbers Come From 37

Sign-Switching: Understanding Negation and Absolute Value 39

Adding with Negative Numbers 40

Subtracting with Negative Numbers 42

Knowing Signs of the Times (And Division) for Negative Numbers 43

Answers to Problems in Getting Down with Negative Numbers 45

Chapter 4: It’s Just an Expression 49

Evaluating Expressions with Addition and Subtraction 50

Evaluating Expressions with Multiplication and Division 51

Making Sense of Mixed-Operator Expressions 52

Handling Powers Responsibly 53

Prioritizing Parentheses 55

Pulling Apart Parentheses and Powers 56

Figuring Out Nested Parentheses 58

Bringing It All Together: The Order of Operations 59

Solutions to It’s Just an Expression 61

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

Checking for Leftovers: Divisibility Tests 70

Understanding Factors and Multiples 72

One Number, Indivisible: Identifying Prime (And Composite) Numbers 73

Generating a Number’s Factors 75

Decomposing a Number into Its Prime Factors 77

Finding the Greatest Common Factor 78

Generating the Multiples of a Number 80

Finding the Least Common Multiple 81

Solutions to Divisibility, Factors, and Multiples 83

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

Chapter 6: Fractions Are a Piece of Cake 91

Getting Down the Basic Fraction Stuff 91

In Mixed Company: Converting between Mixed Numbers and Improper Fractions 94

Increasing and Reducing the Terms of Fractions 96

Comparing Fractions with Cross-Multiplication 99

Working with Ratios and Proportions 101

Solutions to Fractions Are a Piece of Cake 103

Chapter 7: Fractions and the Big Four 109

Multiplying Fractions: A Straight Shot 109

Flipping for Fraction Division 111

Reaching the Common Denominator: Adding Fractions 113

The Other Common Denominator: Subtracting Fractions 116

Multiplying and Dividing Mixed Numbers 118

Carried Away: Adding Mixed Numbers 120

Borrowing from the Whole: Subtracting Mixed Numbers 123

Solutions to Fractions and the Big Four 126

Chapter 8: Getting to the Point with Decimals 143

Getting in Place: Basic Decimal Stuff 143

Simple Decimal-Fraction Conversions 146

New Lineup: Adding and Subtracting Decimals 148

Counting Decimal Places: Multiplying Decimals 150

Points on the Move: Dividing Decimals 151

Decimals to Fractions 153

Fractions to Decimals 155

Solutions to Getting to the Point with Decimals 157

Chapter 9: Playing the Percentages 165

Converting Percents to Decimals 165

Changing Decimals to Percents 167

Switching from Percents to Fractions 168

Converting Fractions to Percents 169

Solving a Variety of Percent Problems Using Word Equations 171

Solutions to Playing the Percentages 173

Part 3: a Giant Step Forward: Intermediate Topics 177

Chapter 10: Seeking a Higher Power through Scientific Notation 179

On the Count of Zero: Understanding Powers of Ten 180

Exponential Arithmetic: Multiplying and Dividing Powers of Ten 182

Representing Numbers in Scientific Notation 183

Multiplying and Dividing with Scientific Notation 184

Answers to Problems in Seeking a Higher Power through Scientific Notation 186

Chapter 11: Weighty Questions on Weights and Measures 189

The Basics of the English System 190

Going International with the Metric System 192

Converting Between English and Metric Units 194

Answers to Problems in Weighty Questions on Weights and Measures 198

Chapter 12: Shaping Up with Geometry 203

Getting in Shape: Polygon (And Non-Polygon) Basics 204

Squaring Off with Quadrilaterals 204

Making a Triple Play with Triangles 208

Getting Around with Circle Measurements 212

Building Solid Measurement Skills 214

Answers to Problems in Shaping Up with Geometry 218

Chapter 13: Getting Graphic: Xy-Graphs 223

Getting the Point of the Xy-Graph 223

Drawing the Line on the Xy-Graph 227

Answers to Problems in Getting Graphic: Xy-Graphs 230

Part 4: the X Factor: Introducing Algebra 235

Chapter 14: Expressing Yourself with Algebraic Expressions 237

Plug It In: Evaluating Algebraic Expressions 238

Knowing the Terms of Separation 240

Adding and Subtracting Like Terms 242

Multiplying and Dividing Terms 243

Simplifying Expressions by Combining Like Terms 245

Simplifying Expressions with Parentheses 247

FOILing: Dealing with Two Sets of Parentheses 249

Answers to Problems in Expressing Yourself with Algebraic Expressions 251

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

Solving Simple Algebraic Equations 259

Equality for All: Using the Balance Scale to Isolate X 262

Switching Sides: Rearranging Equations to Isolate X 264

Barring Fractions: Cross-Multiplying to Simplify Equations 266

Answers to Problems in Finding the Right Balance: Solving Algebraic Equations 268

Part 5: the Part of Tens 277

Chapter 16: Ten Alternative Numeral and Number Systems 279

Tally Marks 279

Bundled Tally Marks 280

Egyptian Numerals 280

Babylonian Numerals 281

Ancient Greek Numerals 281

Roman Numerals 282

Mayan Numerals 282

Base-2 (Binary) Numbers 283

Base-16 (Hexadecimal) Numbers 284

Prime-Based Numbers 285

Chapter 17: Ten Curious Types of Numbers 287

Square Numbers 287

Triangular Numbers 288

Cubic Numbers 289

Factorial Numbers 289

Powers of Two 290

Perfect Numbers 290

Amicable Numbers 291

Prime Numbers 291

Mersenne Primes 291

Fermat Primes 292

Index 293

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