MatheMANIA Author:Raymond Blum ABRACADABRA! Amaze and dazzle your family and friends with incredible number-magic tricks. They add up to a lot of fun for everyone and make learning math entertaining. Go ahead and try one-they're all easy to perform because they work practically by themselves. And you don't need any special skills or expensive magic equipment. Read minds; carr... more »y out card sorcery,paper magic, and calculator wizardry: make psychic predictions; and dip into a mixed bag of tricks. And if someone asks how it's done, just say, "It's magic!"« less