If anyone is looking for a handy study booklet that contains most of the GMAT math concepts and formulas, I strongly recommend the GMAT Math Study Sheet at www.GMATMathSheet.com. It's a 4-page condensed study note that has GMAT math relevant concepts as well as examples elaborating on those concepts. I am not saying that you will be able excel in the math portion just by staring at that study sheet. You will definitely need go through numerous practice problems. But the study sheet will give you a much clearer overview of math needed and the overall structure of the test. I think they have a preview version of the study sheet in which only the first page is displayed. Here is the preview link.
Hope it is helpful.
Hope it is helpful.

















