Mental arithmetic. We count faster than the calculator. Bagautdinov R.R., Nevmorzhitskaya A.Yu.

Can you count in the mind faster than the calculator? For children familiar with mental arithmetic, this is not a problem! As a result of classes, students believe with lightning speed that four -digit numbers change in the mind and solve complex problems. Here is the first practical book for parents and children in mental arithmetic! Its authors, teachers of the international network of schools for the development of intelligence and mathematical thinking "Abus Center", created a set of techniques using a neuropsychological approach. The book has many practical tasks and exercises with which parents will be able to captivate the child with mathematics and help his intellectual development. Abakus Center is 182 current schools in 25 countries. Its teachers have prepared more than 30,000 students, of which 96 prize -winners of the Pama Global International Olympiads. Achievements and records of students are often covered in the media.