Completely updated-but just as fun and easy! The bestselling refresher course in math survival returns Sharp minds, like healthy bodies, are subject to the same rule of nature: use it or lose it. And in our dollar-and-cents, bottom-line world, where numbers influence every aspect of our lives, none of us can afford to let our math skills atrophy. This revised and updated edition of All the Math You'll Ever Need is a friendly, funny, and easy workout program that quickly puts you in command of all the powerful math tools you need, both at home and at work. * A complete update of the classic guide that has sold more than 100,000 copies * Shows step-by-step techniques for working with decimals and fractions, figuring discounts, working out time, rate, and distance problems, calculating mortgage interest rates, and much more