The Usborne Illustrated Elementary Math tells it straight and simple, explaining everything children and parents need in order to understand basic level math. This book will help to lay a firm foundation for confidence and success in math. Readers can dip in for quick explanantions or work through by subject to build up knowledge step-by-step.The Usborne Illustrated Elementary Math tells it straight and simple, explaining everything children and parents need in order to understand basic level math. This book will help to lay a firm foundation for confidence and success in math. Readers can dip in for quick explanantions or work through by subject to build up knowledge step-by-step.