37.38-15.34+12.62-14.66的简便计算

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37.38-15.34+12.62-14.66的简便计算

37.38-15.34+12.62-14.66的简便计算
37.38-15.34+12.62-14.66的简便计算

37.38-15.34+12.62-14.66的简便计算
37.38-15.34+12.62-14.66
=(37.38+12.62)-(15.34+14.66)
=50-30
=20