(72+23)乘以（85-27）怎样简便怎样算

来源：学生作业帮编辑：百度作业网作业帮分类：数学作业时间：2024/08/18 03:32:12

(72+23)×(85-27)
= 95×(85-25-2)
= (100-5)×(60-2)
= 100×60 - 2×100 - 5×60 + 5×2
= 6000 - 200 - 300 + 10
= 6000 - 500 + 10
= 5510
再问：那是小学四年级的题目
再答：那就改成 (72+23)×(85-27) = 95×(85-25-2) = 95×(60-2) = 95×58 = (100-5)×58 = 100×58 - 5×58 = 5800 - 290 = 5510

(72+23)乘以（85-27）怎样简便怎样算 99乘以63怎样简便怎样算怎样简便怎样算 65乘以99加65 85乘以201减85 157乘以156分之23怎样简便算? 36乘以21怎样算更简便 17乘以13-23乘以6-23怎样简便法 12.5乘以0.25再乘以64怎样算简便 48乘以0.69+3.1乘以4.8怎样简便算 432.1乘以123.4-432.2乘以123.3(怎样简便计算） 2005乘以2006分之2005 怎样简便怎样算 0.125乘以9.6怎样简便 0.99乘以10.怎样简便