## 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