4.26*5.8+57.4*0.58的简便运算是
问题描述：
4.26*5.8+57.4*0.58的简便运算是
答
4.26*5.8可换为42.6*0.58,然后变为（42.6+57.4）*0.58→100*0.58→58
4.26*5.8+57.4*0.58的简便运算是
4.26*5.8可换为42.6*0.58,然后变为（42.6+57.4）*0.58→100*0.58→58