It would seem, what could be more serious than a school mathematics course? However, the authors of the book strive to prove that this subject can be taught boring, in an exciting way. This is especially important for children and their parents. After reading the book, you will understand how to turn computing into a fun game, and everywhere you will find the possibilities of composing mathematical problems - whether you are going on a family trip, celebrating your child's birthday or doing chores with him. And interesting facts from the life of great scientists will confirm: the world of mathematics is by no means limited to dry numbers and calculations. The publication is intended for teachers and parents who want to instill in their children an interest in mathematics and the exact sciences in general.