Mathematical Puzzles

Everyone is familiar with the first four operations in mathematics: addition, subtraction, multiplication, and division. But there are three more operations! About them and more will be told by the book by Yakov Perelman, Mathematical Puzzles. With this book, it will be easy to create and solve equations, raise numbers to powers, and extract roots. The author will share the secrets of quick calculations and solving many ingenious problems. For middle school age.