The Official Guide for GMAT Quantitative Review

If you are serious about taking the Gmat and getting a good score, you absolutely must buy this book along with the other two official supplements. Between the three books, you will have access to over 1,000 problems that have been retired from the Gmat and are 100% representative of what you are going to see come test day. My scores: Powerprep 1 (Official software) - 700 - no studying Princeton 1 - 630 Kaplan 1 - 560 Kaplan 2 - 600 Kaplan 3 - 580 Powerprep 2 - 730 Actual Gmat - 750 I am 100% certain that using all three books is what raised my score those last 50 points. On test day I was the only one at the center and I got to know the receptionist pretty well. She told me that she sees hundreds of these scores a year and the ones who get 700+ all have one thing in common - they have all done every problem in all three books. My advice: spend the money on all three. Work every problem, noting which ones are hard and which you get wrong. When you are done, go back and work the hard/incorrect problems again. Then, when you are done, start over from page one. You effort will be rewarded on test day.

I couldn't have prepped for the GMAT without this guide. It is a "must have" for anyone who actually wants to study for the GMAT with real GMAT questions. Kaplan's questions are too hard, Barron's are just bizarre - you can rely on these questions.

You should definitely make this a part of your study plan. The book was extremely helpful to me. I found it to be an excellent refresher. The explanations in the answers were great.

While I did not compare this with other guide books, like some reviewers have, I did use it to prepare for the GMAT. There are hundreds of sample problems and the solutions and HOW the solution was arrived at. When I took the exam, there were no problems that were in a format I had not seen. Naturally, they were different, but the TYPES of problems had all been explained in the book. If - for some insane reason - I were to have to take the GMAT again, I would buy this book again. PS: I scored 90% on the quantitative (woohoo!)

I bought this book with the understanding that it was not a study guide. This book should be only used as an additional aid for the math section of the GMAT. This book has really great sample questions that are very similar to the questions that you will see when you take the GMAT. This booked coupled with a GMAT Review study guide, such as the books offered by the Princeton Review makes an awesome combo.