This educational, entertaining and empowering book teaches you how to work addition, subtraction, multiplication and division problems faster than you thought possible--without the use of a calculator! Uses the same successful format from the author's bestselling Rapid Math Tricks and Tips--one to two tricks a day for 30 days and a Quick Quiz at the end of each week. Contains 50 fun new math tricks plus over 20 fresh parlor tricks, tips, math anecdotes and challenges.