三下五除二

sānxiàwǔchú'èr

three-down-five-reject-two—neat and quick

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三下五除二

sān xià wǔ chú èr

neat and quick

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三下五除二|三下五除二 [sān xià wǔ chú èr] ► three, set five remove two (abacus rule) ► efficiently ► quickly and easily