Why Should You Buy This Book? If you are the parent of an elementary school student, this book will help your child master the multiplication tables giving him or her the foundation needed for grasping new math concepts with speed, accuracy, and confidence. If you are a high school student, this book will sharpen your thinking speed while giving you practice at developing a logical plan for solving each puzzle, especially the more advanced ones. If you are a senior citizen, solving these simple to complex puzzles may help you ward off Alzheimer's. Also, you'll discover that you and your...