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2018*2016/2017的简便计算

2018*2016/2017的简便计算 解:采用分配律, 原式=(2017+1)x2016/2017 =2017x2016/2017+2016/2017 =2016又2016/2017

2016×2017-2018×2015 =2016*(2018-1)-2018*2015 =2016*2018-2016-2018*2015 =2018*(2016-2015)-2016 =2018-2016 =2

2016*2016/2017+2017*2017/2018-4035/(2017*2018) =(2017-1)*2016/2017+(2018-1)*2017/2018-(2017+2018)/(2017*2018) =2017*2016/2017-2016/2017+2018*2017/2018-2017/2018-1/2017-1/2018 =2016-2016/2017+2017-2017/2018-1/2017-1/20...

简便计算2018+2017-2016 2018+2017-2016=2018+(2017-2016) =2018+1=2019

2016*2018=(2017-1)*(2017+1) =2017*2017-1 所以原式=2017*2017-2017*2017+1=1

2016/2016又2017分之2016 =2016/[(2016x2017+2016)/2017] =2016 x 2017/(2016x2017+2016) =2017/(2017+1) =2017/2018

2018×2016/2017 =(2017+1)X2016/2017 =2017X2016/2017+2016/2017 =2016+2016/2017 =2016又2016/2017

(201720172017-20172017-2017)/(201820182018-20182018-2018) =[2017×(100010001-10001-1)]/[2018×(100010001-10001-1)] =2017/2018

2016×2017-2015×2018 =2016×2017-2015×2017-2015 =(2016-2015)×2017-2015 =2017-2015 =2

2018x2017-2017×2016 =2017X(2018-2016) =2017X2 =4034 希望对你有帮助,满意请及时采纳, 你的采纳是我回答的动力!

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