More Rapid Math: Tricks and Tips: 30 Days to Number MasteryMath skills you can count on In this eagerly awaited sequel to the popular Rapid Math Tricks andTips, Professor Ed Julius shows you how to master difficultproblems in addition, subtraction, multiplication, and divisionquickly, easily? and without a calculator. And have fun while doingit By learning one to two tricks a day for thirty days, you'll beamazed at the increase in your number power. Discover how you canquickly subtract by oversubtracting.
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More Rapid Math: Tricks and Tips: 30 Days to Number Mastery