Entertaining algebra

Acquaintance with the exact sciences can be an exciting and exciting thing. The famous Soviet mathematician and teacher Yakov Perelman called his “entertaining algebra” not by the educational leadership, but by a book for free reading. Step by step, the author introduces readers into the amazing world of algebraic secrets, curios and original solutions.
How much does all air weighs? What is the language of algebra? What task Lev Tolstoy really liked? Can Algebra need a hairdresser? How can you guess a person’s birthday? For the solution, what theorem was proposed by a large monetary reward? Does Algebra know how to joke? What about Algebra wrote Stodal? What task is we are talking about in the famous picture of the artist Nikolai Bogdanov-Belsky? How is mathematics related to music?
The publication contains tasks with entertaining plots that arise curiosity and imagination, entertaining excursions to the history of mathematics, examples of unexpected applications of algebra in practical life