23.5*5.66-23.4*5.67的简便运算方 - 知识问答

23.5*5.66-23.4*5.67的简便运算方法

1个回答

23.5*5.66-23.4*5.67
＝23.5*5.66-23.4*（5.66+0.01）
＝23.5*5.66-23.4*5.66-23.4*0.01
＝（23.5-23.4）*5.66-0.234
＝0.1x5.66-0.234
=0.566-0.234
=0.332

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