Numbers pervade nearly every aspect of our daily lives: telephone numbers, zip codes, Social Security numbers, driver's license and credit-card numbers. We are beleaguered by numbers: no wonder we're fascinated, intrigued, even a bit bewildered by them; no wonder tricks involving numbers are perennial favourites.With Self-Working Number Magic you can perform show-stopping tricks, stunts and routines that are sure to delight audiences because they capitalise on our natural fascination for numbers. Karl Fulves, well-known writer in the field of magic presents 101 baffling tricks that are so easy to do they practically work by themselves. While all the tricks involve basic mathematical principles, the mathematics is not discussed here; rather, emphasis is on performing and perfecting the tricks. They can be learned quickly and put into operation immediately, and best of all, they really dazzle an audience.Among the seemingly impossible tricks and stunts in this book: guessing a spectator's age or how long a married couple have known each other; predicting the sum of a group of numbers and using your brain like a lightning calculator; and instantly memorising long lists of numbers or things. This selection also includes tricks involving cards, calendars, magic squares, and betting games. The author even suggests stage patter to use while performing.With this book and a modicum of practice, anyone can perform an assortment of number tricks that will astound and delight an audience. Whatever your age or math skills, you'll soon be baffling friends and relatives with over 100 fascinating, foolproof tricks.