Living mathematics. Entertaining algebra. Perelman Ya.I.

Why is December called December, which means “tenth”, although in fact it is the twelfth month? How to calculate how much on average a way is growing on the human head before falling out? Do we really know how to count, or does it only seem to us? The reader will find answers to these and many other questions in J. Perelman's fascinating book “Living Mathematics”, where the author collected various mathematical puzzles and riddles, giving them the form of curious short stories.

The current edition also included the work “Entertaining Algebra”, the purpose of which “to educate the reader in the reader to occupy algebra” and offer him “various tasks with unusual plots, incriminating curiosity, entrepreneurial excursions to the history of mathematics, unexpected Application of algebra to practical life. "