Practicing the soroban

It looks like about an hour a day for a year or two for the first certification. The to-do list follows.

1 Soroban

1.1 Read Soroban handbook

1.2 Watch videos on youtube

1.4 Books

1.4.1 The Abacus: The World’s First Computing System: Where it Comes From, How it Works, and How to Use it to Perform Mathermatical Feats Great and Small The Abacus: The World’s First Computing System: Where it Comes From, How it Works, and How to Use it to Perform Mathermatical Feats Great and Small

1.4.2 Advanced Abacus: Theory and Practice Takashi Kojima

1.4.3 The Fundamental Operations in Bead Arithmetic – How to Use the Chinese Abacus Kwa Tak Ming

1.4.4 Japanese Abacus Use & Theory Takashi Kojima

1.4.5 Speed Mathematics Simplified Speed Mathematics Simplified Edward Stoddard

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