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- Abacus (7218 bytes)
37: That "modernization" makes the Japanese '''soroban''' (算盤) (apparently) more compliant...
39: ...an is about 8 cm (3 inches) tall. The beads on a soroban are usually shaped as a double cone (bi-cone) to ...
41: ... 1 upper bead with 4 lower beads, when they learn soroban in school!
43: ... wooden frame. In this way the "thickness" of the soroban (for foreigners) is higher, render it easier for ...
47: https://www.soroban.com/deal_eng.html
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