6.6×5.78+6.22=(6+0.6)×5.78+6.22=6×5.78+0.6×5.78+6.22=34.68+3.468+6.22=40.90+3.468=44.368
这道题是不能简便计算的。应该按照运算顺序去做。＝38.148+6.22=44.368望采纳，谢谢
