Mental arithmetic is a method of harmonious development in intelligence, which uses Asian computing technology with a variety of accounts — abacus (soroban). The program of mental arithmetic classes consists of mechanical exercises with fingers on the accounts, counting in the mind and exercises for concentration, attention and logic. It helps to significantly increase the speed of thinking and enhances creative disciplines, improves understanding of mathematics, removes distraction and inattention, develops visual-spatial thinking, trains memory, and most importantly proves that learning can be fun. The groups are small. The age of children from 4 years old. Sign up!