原式=-3.75+(3/4+5/6)*24/5
=-3.75+(18/24+20/24)*24/5
=-3.75+38/5
=-3.75+7.6
=3.85
—3.75—【0.75+(5/6)】X(—24/5)
—3.75—【0.75+(5/6)】X(—24/5)
數(shù)學(xué)人氣:583 ℃時間:2020-05-22 14:18:09
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