Math for All Seasons

Your challenge is to find the sumWithout counting one by oneWhy not count? It's much too slow --Adding is the way to go!Make clever groups before you start --Then add them in a way that's smart!MATH FOR ALL SEASONS will challenge every kid -- and every parent -- to open their minds and solve problems in new and unexpected ways. By looking for patterns, symmetries, and familiar number combinations within eye-catching pictures, math will become easier, quicker, and more fun than anyone could have imagined!Tang, Greg is the author of 'Math for All Seasons', published 2002 under ISBN 9780439210423 and ISBN 0439210429.