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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

解: a=(2018×2017-2018)/(2017×2017+2017) =2018×(2017-1)/[2017×(2017+1)] =2018×2016/(2017×2018) =2016/2017 b=(2017×2016-2017)/(2016×2016+2016) =2017×(2016-1)/[2016×(2016+1)] =2017×2015/(2016×2017) =2015/2016 a/b=(2016/2017)/(201...

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!

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

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

2017*2018-2016*2019 =2017*2018-2016*(2018+1) =2017*2018-2016*2018-2016*1 =2018*(2017-2016)-2016 =2018-2016 =2 谢谢,请采纳

(2014+2015+2016+2017+2018)÷2016 =(2016×5)÷2016 =(2016÷2016)×5 =1×5 =5

=(2013+2019)/2016+ (2014+2018)/2016+ (2015+2017)/2016+ 2016/2016 =2+2+2+1 =7

2017×2017-2016×2018 =2017×2017-(2017-1)×(2017+1) =2017×2017-2017x2017 +1 =1

2017×2018.2018-2018×2017.2017怎样简便 2017×2018.2018-2018×2017.2017 =2017*2018*1.0001-2018*2017*1.0001 =2017*2018*2.0001-2017*2018*1.0001 =0

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