23.5*5.66-23.4*5.67的简便运算方法_数学解答

23.5*5.66-23.4*5.67的简便运算方法

人气：389 ℃　时间：2019-10-19 23:25:44

解答

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