Mathematics Course 2: Pre-AlgebraChapter 1 Principles of AlgebraChapter 2 Rational NumbersChapter 3 Multi-Step Equations and InequalitiesChapter 4 Exponents and RootsChapter 5 Ratios, Proportions and SimilarityChapter 6 PercentsChapter 7 Graphs and FunctionsChapter 8 Foundations and GeometryChapter 9 Two-Dimensional GeometryChapter 10 Three-Dimensional GeometryChapter 11 Data, Statistics, and ProbabilityChapter 12 Polynomials