心算
xīn​suàn

mental arithmetic

  • created sense approved 心算 · xīn​suàn · mental arithmetic

    心算

    xīn​suàn

    mental arithmetic

    to calculate mathematical problems mentally without the use of external tools or writing

    他的心算速度比我用计算器还快。

    verb

    created sense

  • created sense approved 心算 · xīn​suàn · planning

    心算

    xīn​suàn

    planning

    mental preparation, calculation, or having a scheme in mind

    他对此事早有心算，所以表现得很镇定。

    noun

    created sense