This is a step-by-step guidebook that is designed to help students on the quantitative section of the SAT. This guidebook produces an understanding of key mathematical concepts as the various topics are covered by the text, and, unlike other SAT guides, lists skills and capabilities, that if mastered will result in well-prepared students. More than 300 problems are posed and solved to provide a comprehensive review of the mathematical concepts needed to score in the very top percentiles. This guidebook will be useful to students, parents, teachers, and administrators to help prepare test takers.