4.25x3.7一0.37x32.5的简便计算方法

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4.25x3.7一0.37x32.5的简便计算方法

4.25x3.7一0.37x32.5
=4.25x3.7一3.7x3.25
=3.7×(4.25-3.25)
=3.7