Booklet with defects. There may be various damages, for example: a mark left from the price tag, a folded, scratched or slightly torn cover, other minor defects.
The tasks in this book are designed for children aged 5-7 to perform subtraction operations. The tasks developed develop attention, attentiveness, and activate brain activity. Here you will find MIRACLES of learning! The answers are printed with invisible ink! However, if you rub the ink with a coin, the correct answer will appear. This is real magic! Ask your mom or dad for a coin and start! Solve the tasks and check your answers.
