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暗算あんざん

#40,991

Inflections of 暗算
あんざん
Meaning
    1. ①
      mental arithmetic
      彼かれは暗算あんざんをするほど頭あたまが良いくない。
      He doesn't have enough brains to do sums in his head.
    1. ①
      EN Mental calculation comprises arithmetical calculations using only the human brain, with no help from calculators, computers, or pen and paper.
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Kanji
暗 アン darkness, disappear, shade 算 サン calculate, divining, number
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