There is a class of "Fast Calculation of Mind and Brain" in Guilin Road Kindergarten in Changchun City. At present, quick calculation of brain and brain is the only simple method, and there is no real thing. Mental arithmetic is different from "abacus mental arithmetic" and "palm arithmetic", which requires neither abacus nor fingers. This is a fast calculation method invented by Xi An Niu Hongwei. Fast calculation of heart and brain
The patent teaching method of quick mental arithmetic (mental arithmetic, brain arithmetic, quick arithmetic and pen arithmetic) is the same as that of primary school mathematics calculation, which is the best way for children to pass oral arithmetic and pen arithmetic in primary school.