Reusable Trainer. Subtraction within 100

The reusable trainer is a convenient tool for preschool preparation for children. With this book, the child will learn arithmetic, specifically subtraction.By completing exercises from the notebook, the future student:Will master counting up to one hundred and learn to subtract... numbers using the classical method as well as column subtraction.Will discover what the difference between numbers is.Will learn to subtract numbers crossing the tens.Features of the book:All tasks in the book can be performed multiple times, as the water-based marker easily erases from the pages.The set includes a marker with an eraser.The book has 16 pages.Book size: 17 × 24 cm.For children aged 6 and up.