Quote: "The Chinese abacus could also represent numbers as small as 0.01. The speed at which a trained abacus user can calculate sums is remarkable, and proficient users are even able to visualize the movement of the beads in their heads in order to achieve astonishing feats of mental arithmetic."
Question: How does it work? How does one train on it?
Comments: I've of course seen these before, and even played with them temporarily out of curiosity when I was younger, but never fully understood them. I think I understand them more now, and I wonder if using these little devices would help improve my mental math skills. Honestly, it seems like using them would be pretty fun. I might have to experiment with one and find out if this hands-on math technique could help me be more enthusiastic about my math skills. This is a large idea, I know, but maybe it could take me one small step closer to this goal.
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