ISBN-13: 9781453784969 / Angielski / Miękka / 2011 / 368 str.
Twenty useful problem solving skills for the middle school math competition: Mathcounts. This book contains twenty chapters. Each chapter details a problem solving skill commonly used in Mathcounts competitions. Each chapter consists of three parts: (1) basic skill and knowledge, (2) related problems, and (3) detailed solutions to the problems.