This is the only book available offering students detailed solutions to the past official SAT tests found in the Educational Testing Service (ETS) book, "10 Real SATs". This companion guide is the only source for detailed explanations of the Maths Section's answers that are found in the official ETS SAT book. The ETS book offers only the solution, with no explanation of how to get those answers. What good is the official SAT book if you don't know how to work out the correct solutions that it provides? Unless you are already a math genius, it will only further confuse and frustrate you. This book is the essential book, providing step-by-step explanations and answers that will enhance reader's chances for 'killer scores' on the SAT Maths section. Also included is a section on test-taking tactics and strategies to maximise your score.