简便计算过程方法如下解:2.5×0.6−1.8×0.5=0.5x5x0.6-1.8x0.5=0.5x(3-1.8)=0.5x1.2=0.6
简便计算2.5×0.6−1.8×0.5=0.5x5x0.6-1.8x0.5=0.5x(3-1.8)=0.5x1.2=0.6
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