Kaplan GMAT 2005 with CD
This book also offers a good introduction to the GMAT. It is not as readable as the
PR book, but the Kaplan book is certainly more thorough and features rigorous practice problems.
A special caveat to those people unfamiliar with Kaplan: Do not worry too much if you have difficulty solving Kaplan's practice problems. They are very hard--much harder than what you will see on the actual GMAT--and many of the problems are also poorly written.
IMPORTANT WARNING: Do not fret about your Kaplan practice test scores. The scores tend to be skewed down dramatically--from 70-120 points below what you should actually expect on your real exam. This is just a ploy by Kaplan to scare people into buying their expensive classroom test prep services. Nevertheless, it's still worth practicing the tests on the Kaplan CD because you should have as much GMAT simulation as possible before your real exam.
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Kaplan GRE & GMAT Math Workbook
I'm lukewarm about this book. I didn't find it too useful in my preparation. At first, I thought I was going to like this book because it seemed to comprehensively cover the fundamentals of GMAT math--which it does in fact do adequately. However, by the time I finished I felt like this book was too basic and didn't offer much strategy.
This book may be well suited for people who have been out of college for a long time or have not touched math in a long time. But the regular Kaplan and Princeton Review books are probably sufficient to cover the fundamentals. Save your money.
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Kaplan 800, 2005-2006
I bought this book on a spontaneous Amazon.com shopping spree. What surprised me about this book is that it does not offer that many practice problems, in comparison with the aforementioned books. However, it does feature very thorough and very clear explanations to each problem. This is a great book to buy if you are looking for decent strategies to obtain a 700+.
Kaplan 800's math review is simply fabulous. The math review alone is reason enough to buy this book.
Purchase this book and review it slowly, if you have the time.
Source:
www.beatthegmat.com
HTH,
Arun