This book contains a lot of fun and playful exercises for children aged 6 and up who want to learn to count up to 20. No pencils or markers are needed to do the exercises, just the many colorful stickers that come with the book. So let your child solve the exercises, find and stick the stickers with the correct outcome. For hours of counting and piecing fun! The following educational concepts are covered in this book: the order of numbers up to 20, completing number rows, understanding 'greater than' and 'less than', adding and subtracting sums up to 20.