Number Games

Think outside the box! Ups & Downs, Professor Backwards, Digit Demolition & Spy Series Beginning with IDisk-OO on the cover O an ingenious game of profession O here are 25 fiendish puzzles that challenge your ability to think in numbers. - Uncover the hidden pattern of IWhatIs the Connection?O Accept the 4,500 year-old dare of a Lo-Shu Magic Square. Get a tasted of factorials, toy with symmetry and geometry. Even step inside the brain of renowned mathematician Karl Friedrich Gauss. - Bring a pencil, but remember O (1) you donIt have to be a whiz to play, because (2) the most important skills youIll need are curiosity and an open mind. (Solutions and explanations are provided of course!)Moscovich, Ivan is the author of 'Number Games' with ISBN 9780761120186 and ISBN 0761120181.