Book excerpt: Your guide to a higher math score on standardized tests *SAT ACT® ASVAB GMAT® GRE® CBEST® PRAXIS I® GED® And More! Why CliffsNotes? Go with the name you know and trust Get the information you need–fast! About the Contents: Introduction How to use this book Overview of the exams Part I: Basic Skills Review Arithmetic and Data Analysis Algebra Part II: Strategies and Practice Mathematical Ability Quantitative Comparison Data Sufficiency Each section includes a diagnostic test, explanations of rules, concepts with examples, practice problems with complete explanations, a review test, and a glossary! Test-Prep Essentials from the Experts at CliffsNotes® For more test-prep help, visit CliffsNotes.com® *SAT is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.