• Beginner\'s Wipe-Clean Subtraction book for 3-5 years featuring lots of different activities! • Write your answers, then wipe-clean and start again! • Answers can be written in crayon, felt pen or washable marker pen! • Book size: 29.5 x 21 cm (11½\" x 8¼\"). The Beginner\'s Wipe-Clean Subtraction book aims to teach children a range of basic skills to prepare them for their first school years. Using laminated wipe-clean pages, children can enjoy the activities again and again. The pages begin with smaller numbers and build up to large ones and includes the basic sums from 2-1 to 20-4 and represent the numbers as objects the child can relate to. Answers can be written in crayon, felt tip or washable marker pens and then wiped clean so the pages can be used again! Additional details: Packaging size: 240mm x 180mm x 6mm Recommended age: 3-5