Video: Mental Math: Multiplying Two-Digit Numbers

May 22, 2012

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Since you can't use a calculator on the GMAT Quantitative section, one of the worst time-management bottlenecks for many test-takers is simple arithmetic. This is one technique that I've used for years to multiply two-digit numbers more quickly, accurately, and intuitively. Enjoy!



About the author: Jeff Sackmann has written many GMAT preparation books, including the popular Total GMAT Math, Total GMAT Verbal, and GMAT 111. He has also created explanations for problems in The Official Guide, as well as 1,800 practice GMAT math questions.

Total GMAT Math

The comprehensive guide to the GMAT Quant section. It's "far and away the best study material available," including over 300 realistic practice questions and more than 500 exercises!
Click to read more.