http://www.gmathacks.com Improve your GMAT score, get into business school. 29 Jul 2010 12:00:00 +0000 en http://www.gmathacks.com/mental-math/video-mental-math-percents.html 29 Jul 2010 12:00:00 +0000 Jeff Sackmann Mental Math Today's video covers one of my favorite mental math tricks: calculating percents by starting with 10%, 5%, and 1%. It's powerful, and it's a great way to get you thinking more abstractly about all sorts of calculations--not just percents. Som [...] http://www.gmathacks.com/cat-strategy/video-intro-to-the-computer-adaptive-test.html 27 Jul 2010 12:00:00 +0000 Jeff Sackmann CAT Strategy In today's video, I talk through the basics of the GMAT CAT. I cover a lot of the same ground as in an article I wrote almost four years ago on the same topic. Very little has changed since then, so if you prefer text to video, [...] http://www.gmathacks.com/business-school-admissions/planning-for-applications-and-the-revised-gre.html 23 Jul 2010 12:00:00 +0000 Jeff Sackmann Business School Admissions An increasing number of business schools accept the GRE. I still do not recommend that you prepare for the GRE, or (worst of all) prepare for both the GRE and GMAT. Here's some background you may want to be aware of. To some extent, the co [...] http://www.gmathacks.com/quant-topics/video-og-diag-explanation-ps-13.html 21 Jul 2010 12:00:00 +0000 Jeff Sackmann GMAT Math Topics Here's another video question explanation. This one deals with question #13 from the Official Guide math diagnostic. It's a problem that gives lots of people fits, but doesn't have to be that hard. Watch and learn! object width="480" he [...] http://www.gmathacks.com/gmat-111/free-excerpts-from-gmat-111.html 19 Jul 2010 12:00:00 +0000 Jeff Sackmann GMAT 111 Want to get a better feel for the material in my new book, GMAT 111? Here are three one-chapter excerpts to give you a better sampling. You can view [...]