GMAT Math Workout (Princeton Review Series) (ISBN 0679783733)

Only if you only need math review:
I'm a GMAT tutor with 15+ years of successful students behind me. Here's what I suggest for the GMAT: 1. Use the Kaplan CD (as cheesy as the presentation is, the tests are very good). I've heard complaints that the prep tests from Kaplan are too hard, and I have to disagree with the point being made by these students. The only way, on a computer-adaptive test, to increase your score is to test using HARDER, not easier problems. I may kick ass at medium level questions, but unless I want a medium level score, practicing at a lower level hurts rather than helps. The Princeton Review Math and Verbal Workouts do not come with a CD. 2. Ignore the Kaplan book. Use The Princeton Review books (either Cracking the GMAT or GMAT Workouts for Math and Verbal) for tricks and psychology. Try the Official Guide for extra problems and basic review issues (but use as much of the Princeton psychology as you can -- the Official Guide encourages you to do the problems straight, and that's a huge waste of time). The Princeton tests are buggy for sure (Hello! Princeton Review! Fix this!) but are still fairly accurate. 3. Take as many practice tests as you can. That means Kaplan, Princeton Review, PowerPrep. Arco, Barrons, Petersons, and Dummies are all awful. Don't bother with their instruction or their tests. On Princeton Review and PowerPrep, knock 30 points off your score, just to be safe. 4. Check out your local library. Many public libraries have crazy collections of old, out of print Official Guides, chock full o paper-and-pencil tests going back a good 20 years. By all means, use these -- they're a goldmine of practice questions. Good luck!

Look for other review books:
I would definitely not recommend this book. If you have taken any math classes since 3rd grade, you will not need this book. The problem are way too easy and the conceptual discussions gloss over too much. There are better books out there to prepare you for the GMAT.

Good at explaining some concept but full of errors!:
While the book was good explaining many concepts and refreshing me, I had a hard time since it was full of typos. I have been out of college for a while and bought this book just to refresh myself on mathematical concepts. I've always had a very strong grasp on mathematics and just needed to glance over some concepts. I found the book good at explaining many concepts, but the reason I felt compelled to write a review is because there are numerous critical errors in the book. For example, in laying out a basic rule for students to memorize, the book mistakenly writes that an Odd X Odd = Even. There are also several instances where the answer provided does not match the answer's explanation. But an even bigger mistake in the book is where the author provides an incorrect answer and explains why it is correct. It was the wrong answer! I would definitely recommend that you use another source in addition to this book.

Good at explaining some concept but full of errors!:
While the book was good explaining many concepts and refreshing me, I had a hard time since it was full of typos. I have been out of college for a while and bought this book just to refresh myself on mathematical concepts. I've always had a very strong grasp on mathematics and just needed to glance over some concepts. I found the book good at explaining many concepts, but the reason I felt compelled to write a review is because there are numerous critical errors in the book. For example, in laying out a basic rule for students to memorize, the book mistakenly writes that an Odd X Odd = Even. There are also several instances where the answer provided does not match the answer's explanation. But an even bigger mistake in the book is where the author provides an incorrect answer and explains why it is correct. It was the wrong answer! I would definitely recommend that you use another source in addition to this book.

JUNK Full of Typos:
Just spent 30 min struggling with a math problem. Determined to figure out why my answer did not match PR's Turns out it's a typo! The answer is 42 and there is no choice that reads 42. The answer key reads "Select D, the answer is 42" When you look at D it reads 45. THis is the 4th time I've been screwed by a typo in this book. WHAT BUNK! Save your money.