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072 Dr. Miang's Mental Mathematics is a course that teaches children skills in calculation, analysis, and reasoning using the 10-bead abacus for young children and the 4:1 abacus for primary school children as a basis. which is the work of the left brain When children use it until they become proficient We will introduce the use of imagery for computation. This means that the role of the right brain plays a role, while children are having fun doing imaginary calculations. Both hemispheres of his brain were working together to find the correct answer. These things he would not get if he calculated them with a calculator or computer.