For young mathematicians. The first hundred puzzles. Perelman Ya.I.

The best gymnastics for the mind from the famous mathematician Yakov Isidorovich Perelman! In the collection you will find not only mathematical tasks, but also puzzles for quick wit, observation and logic that will help to develop attention, imagination and logical thinking, and also better understand arithmetic, geometry and physics. After useful exercises for the mind, you can begin to serious life tasks, the solution of which will seem easier and more understandable.