The amazing world of numbers and figures. Riddles and charades, tricks, puzzles, puzzles, tanrams, cross -house and Chinnamber

Two elements dominate in mathematics - numbers and figures with their endless variety of properties and relationships.
The book includes two editions of the master of domestic scientific and popular literature B. A. Kordemsky "Amazing World of numbers" and "amazing square". This is a supplemented and updated modern reprint. The first part of the book contains more than 200 tasks, riddles, sharad and rebuzes. The second part proposes the tasks of the pungent tasks for the compilation of a variety of figures from the parts of the square. At the end of the book, answers and detailed solutions are given to all tasks.
This book is for everyone who is fond of mathematics - regardless of age. It is aimed at the penetration of the mind into the amazing world of numbers and figures, to the excavation of its wealth, to arouse mathematical curiosity and its own initiative