Activity book

In this book, the tasks are designed to perform subtraction operations for children aged 5-7. The completed tasks develop attentiveness, attentiveness, and activate brain activity. Here you will find the MIRACLES of learning! The answers are printed in invisible ink! However, if you rub the ink with a coin, the correct answer will appear. This is real magic! Ask mom or dad for a coin and get started! Solve the problems and check the answers. 24 pages. Format 21 x 28 x 0.3 cm, soft cover.