Jisho

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しゅざん 珠算
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Noun
1. calculation on an abacus​
Wikipedia definition
2. Abacus system​Abacus is a Latin word that has its origins in the Greek words abax or abacus (meaning "table" or "tablet") which in turn, possibly originated from the Semitic word abq, meaning "sand". The "abacus system" of mental calculation is a system where users mentally visualize an abacus to do calculations. No physical abacus is used; only the answers are written down. This system is being propagated in China, Singapore, South Korea, Thailand, Malaysia, and Japan.
Read “Abacus system” on English Wikipedia
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Read “Abacus system” on DBpedia
Other forms
珠算 【たまざん】、玉算 【たまざん】

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