Hi guys, I’m new on this forum and I’ve created this account mostly because of methods of calculation (especially the Soroban). I hope you don’t mind me asking a few questions.
So, I’ve just bought my abacus a few weeks ago and started practicing with it every day ever since. In the beginning, I needed to stop for a while and remember all those formulas (I even used some notes to remember them all). However, as the days passed on, it became almost automatic and I don’t even need to think about it anymore. They are coming naturally with the movements of my fingers. Is that normal or should I think about the formulas when doing the operations?
Also, Takashi Kojima said in his book, Japanese Abacus: Its Use and Theory, that “Those who take up their study of the abacus after they are out of their teens are never able to pass the first-grade examination, but it is definitely possible for them to attain to the third rank, and occasionally even to the second.” So what do you guys think about it? Is that true? By “true”, I mean if it’s proved by real experiments and science. In addition, what does the first-grade examination mean exactly? Is it 1th kyu? So only kids are able to attain this level?
That’s all. If possible, I would like you guys to share some of your experiences with the abacus and exercises as well. I think this will help me a lot. Thanks.