## Basic Math and Pre-Algebra

### PART 1. The World of Numbers

**CHAPTER 1. Our Number System**

**CHAPTER 2. Arithmetic**

**CHAPTER 3. Order of Operations and Integers**

**CHAPTER 4. Factors and Multiples**

**CHAPTER 5. Fractions**

**CHAPTER 6. Decimals**

**Powers and Scientific Notation Revisited**

**Arithmetic with Decimal Fractions**

**Rational and Irrational Numbers**

**CHAPTER 7. Ratios, Proportions, and Percentages**

**PART 2. Into the Unknown****CHAPTER 8. Variables and Expressions**

**CHAPTER 9. Adding and Subtracting with Variables**

**Adding and Subtracting Like Terms**

**CHAPTER 10. Solving Equations and Inequalities**

**Using Equations to Find the Missing Number**

**CHAPTER 11. Coordinate Graphing**

**PART 3. The Shape of the World****CHAPTER 12. Basics of Geometry**

**Points, Lines, Planes, and Angles**

**Parallel and Perpendicular Lines**

**CHAPTER 13. Triangles**

**CHAPTER 14. Quadrilaterals and Other Polygons**

**Polygons with More than Four Sides**

**CHAPTER 15. Circles**

**Circles in the Coordinate Plane**

**CHAPTER 16. Surface Area and Volume**

**CHAPTER 17. Geometry at Work**

**Indirect Measurement with Similar Triangles**

**Indirect Measurement with Trigonometry**

**PART 4. The State of the World****CHAPTER 18. Probability**

**Probability of Compound Events**

**CHAPTER 19. Graphs**

**CHAPTER 20. Measures of Center and Spread**

**PART 5. Extra Practice****CHAPTER 21. Extra Practice**

**Part IV: Probability and Statistics**

**APPENDIX A. Check Point Answers**

**APPENDIX B. Extra Practice Answers**

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