This brand-new book in the Clever Kids® series contains over 100 quick-fire number puzzles to exercise young minds. From number chains and simple calculations to target sums and times-table challenges, it’s packed with activities designed to test maths skills in 10 minutes or less.Written by bestselling puzzle book author Gareth Moore, this book is guaranteed to keep children’s brains busy and provide hours of fun as they try to beat the clock.