We improve attention. System for the development of concentration. Ryuta Kavashima

Do you feel that the memory began to change you? Can't you remember someone's name or the right word? The performance of the simplest calculations in the mind is given to you much more complicated than ten years ago? Do not worry: the functions of the brain, like the body, are gradually decreasing after thirty. But if physical exercises help maintain the body in tone, then what does modern science offer for brain health? Ruyta Kavashima found effective ways to train the brain that will improve its work. To do this, you only need to solve simple mathematical examples.

This notebook continues a series of manuals for the development of memory and intelligence “Train the brain” and contains tasks for the addition, subtraction and multiplication of two numbers, as well as to addition and subtracting in Two actions.