Fractions, Decimals, & Percents GMAT Preparation Guide

This and all the other Manhattan GMAT guides were really helpful in helping me prep for the GMAT. My colleagues had recommended them over other guides and I continue to do the same after getting the score I needed on my first try.

The Manhattan series was the most helpful for me on my GMAT because other GMAT prep books only shows time saving or test taking tips but does not go into details about the various topics which I needed because I don't have a strong quantitative base. In fact, I didn't know even the basic idea of number properties or even odd plus odd is even (must have been asleep in math class) and so these guides were a must for me. Except for the critical reasoning guide, I give them all five stars +++! Too bad I found these guides too late (just 2 weeks before the exam) and by the time they arrived in the mail, I didn't have time to do any of the practice exercises but I still managed to improve my score from 500 to 640 from just skimming through these guides. 640 may not be a high score, but for someone who didn't know what a cube root is two weeks before the exam, these guides sure did a good job getting me up to speed. In my situation, these guides were heaven sent. If you're really good with math then they might be too easy and too basic for you. Even then, they would still serve as a nice 'refresher'. They are short and concise and it only took me about an hour or less to skim through each and so they are pricey if you're just using them for a quick review. But if you don't know math like I don't know math, BUY THEM ALL!!! THEY ROCK! However, their critical reasoning gmat guide did not go into much detail than the chapters of other verbal gmat prep guides out there and so I did not feel it's price was justified at all! The other guides costs lest than this guide and covers all the verbal topics and comes with tips as well. It also arrived after my exam date so I returned it.

"Very good for the target audience" - I think this sums it all. If you are someone who has not done active maths for some time now, and therefore does not remember the concepts involved very well, this is the book for you. This I will say holds true for most of the books of the Manhattan Quant series. The Manhattan Quant series books cover the concepts only to the degree that gets asked in the GMAT, and do not overwhelm you. Plus, as each of the Manhattan books then turns to the Official Guide for practice, each of the books has a section where the appropriate questions for that topic are numbered from the OG. They also detail the toughest of the lot from OG. Here I think the book is useful for anyone, irrespective of the personal comfort level with maths. Therefore if you are true to yourself and practice the questions marked from OG as you go along, this would prove to an excellent resource for cracking the quant part of the GMAT.

I completely disagree with the other review, and if you do your research you will certainly come to the conclusion that ManhattanGMAT's books are a fantastic resource for the GMAT. While they are not necessarily a substitute for the class, they cover the material in great detail and include access to various practice problems online and 6 computer adaptive exams. You will most definitely need them for practice if you want to do well. The books are structured around content, not tricks, and are thus meant to teach the material from the ground up. I thought they were extremely useful. Raised my score from 630 to 740.