Education and childcare "Abacus Mental Calculation" Trains Children's Right Brain!
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Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Education and Child Care
There are many successful applicants for difficult junior and senior high schools including Haykei and Gosanke! This is an epoch-making book that thoroughly explains how to improve "Jito" dramatically by calculating with the image of an abacus in your head, not only in your right brain, but also in your ability to calculate, concentrate, and read ahead.