What is metodo trachtenberg?

Metodo Trachtenberg is a mathematical system developed by the Russian engineer Jakow Trachtenberg in the 1920s. The system is designed to simplify and speed up mental calculations, especially for multiplication and division of large numbers. The method utilizes a series of algorithms and shortcuts for solving problems that traditionally require complex mathematical operations. The Trachtenberg system can be used by individuals of any age and mathematical ability and has been widely adopted in many countries worldwide. The system is taught through various books, online courses, and classes, and it has also been introduced in some schools as part of the curriculum.