Feb 14, 20181 minIndian Abacus program presentation at LBK Wisdom Matriculation Hr. Sec. School Ayanperaiyur, Tamilna#ToshioNakano #learnabacus
Aug 12, 20173 minThe Historical Development & The Educational Value Of Zhusuanby Toshio Nakano, Honorary Professor, Daito Bunka University 1. The Historical Development Of Zhusuan (Abacus Mental Arithmetic) The...