More Rapid Math: Tricks and Tips : 30 Days to Number Mastery

All new quick and easy math maneuvers The sequel to the runaway success Rapid Math Tricks and Tips, this book is packed with yet more fun and useful math shortcuts that can be done without a calculator.

Like its predecessor, it teaches readers two tricks a day for 30 days, with a "Quick Quiz" at the end of each week, and over 1,300 practice problems with solutions.

Among the tricks covered are subtracting without borrowing, squaring virtually any number in seconds, and the sublime art of "multiplying in chunks." * Offers 54 fun new math tricks-no repeats from the first book! * Features dozens of new "parlor tricks," "number challenges," and "mathematical curiosities." ED JULIUS (Chatsworth, California) is a Professor at California Lutheran University and the author of the original Rapid Math Tricks and Tips, which has sold over 50,000 copies, and Arithmetricks, both also available from Wiley.

He also lectures and holds workshops on rapid math for children and adults.