7 Unit 3: Getting a Handle on Whole Numbers Chapter 6: Please Excuse My Dear Aunt Sally: Evaluating Arithmetic Expressions with PEMDAS The Three E’s of Math: Equations, Expressions, and Evaluation Introducing Order of Operations (PEMDAS) Handling Powers Responsibly Bringing It All Together: The Order of Operations Practice Questions Answers and Explanations Whaddya Know? Chapter 6 Quiz Answers to Chapter 6 Quiz Chapter 7: Turning Words into Numbers: Basic Math Word Problems Dispelling Two Myths about Word Problems Solving Basic Word Problems Solving More-Complex Word Problems Practice Questions Answers and Explanations Whaddya Know? Chapter 7 Quiz Answers to Chapter 7 Quiz Chapter 8: Divisibility and Prime Numbers Knowing the Divisibility Tricks Identifying Prime and Composite Numbers Practice Questions Answers and Explanations Whaddya Know? Chapter 8 Quiz Answers to Chapter 8 Quiz Chapter 9: Divided Attention: Factors and Multiples Knowing Six Ways to Say the Same Thing Understanding Factors and Multiples Finding Fabulous Factors Generating a Number’s Factors Decomposing a Number into Its Prime Factors Finding the Greatest Common Factor Generating the Multiples of a Number Finding the Least Common Multiple Practice Questions Answers and Explanations Whaddya Know? Chapter 9 Quiz Answers to Chapter 9 Quiz
8 Unit 4: Fractions Chapter 10: Understanding Fractions Slicing a Cake into Fractions Knowing the Fraction Facts of Life Increasing and Reducing Terms of Fractions Converting between Improper Fractions and Mixed Numbers Comparing Fractions with Cross-Multiplication Working with Ratios and Proportions Practice Questions Answers and Explanations Whaddya Know? Chapter 10 Quiz Answers to Chapter 10 Quiz Chapter 11: Fractions and the Big Four Operations Multiplying and Dividing Fractions Adding and Subtracting Fractions with the Same Denominator Adding and Subtracting Fractions with Different Denominators Practice Questions Answers and Explanations Whaddya Know? Chapter 11 Quiz Answers to Chapter 11 Quiz Chapter 12: Mixing Things Up with Mixed Numbers Multiplying and Dividing Mixed Numbers Adding Mixed Numbers Subtracting Mixed Numbers Practice Questions Answers and Explanations Whaddya Know? Chapter 12 Quiz Answers to Chapter 12 Quiz
9 Unit 5: Decimals and Percents Chapter 13: Getting to the Point with Decimals Understanding Basic Decimal Stuff