2.33x0.5x0.4x5的简便方法2.33×0.5×0.4×5的简便方法如下：2.33×0.5×0.4×5=2.33x（0.5×5）x0.4=2.33×2.5×0.4=2.33x（2....赞(0)阅读(121)
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