Quick: What's 25 x 45? How about 742 x 300? Or 4821 / 9? Most of us, when faced with math problems like these, immediately reach for a calculator or a pen.
But imagine if you could perform these and other seemingly difficult-but surprisingly easy-calculations right in your head. Seems like an impossible feat? It's not.
One key to improving and expanding your math potential-whether you're a corporate executive or a high-school student-lies in the powerful ability to perform mental math calculations. Solving basic math problems in your head is a gateway to success in understanding and mastering higher mathematical fields such as algebra, statistics, and calculus. It's a skill that offers other lifelong benefits.

Including
- giving you a competitive edge in school or at work;
- keeping your mind active and sharp at any age;
- improving your performance on standardized tests; and
- learning to solve problems by using a variety of methods.

Mental mathematics also is valuable when you're shopping for groceries or figuring out how much to tip at a restaurant. And perhaps the best part? Learning how to do mental math can be fun-especially when you're learning in the company of Professor Arthur T. Benjamin of Harvey Mudd College, one of the most engaging and entertaining members of The Great Courses faculty. The Secrets of Mental Math, his exciting new 12-lecture course, guides you through all the essential skills, tips, and tricks for improving and enhancing your ability to solve a range of mathematical problems right in your head.