简便计算53×54+54×16+69×25+21×69（3214-2213）×214×21356×113+59×213+518×61323+215+235+263+299+215．

Question

简便计算 53×54+54×16+69×25+21×69	（(3)/(214)-(2)/(213)）×214×213
(5)/(6)×(1)/(13)+(5)/(9)×(2)/(13)+(5)/(18)×(6)/(13)	(2)/(3)+(2)/(15)+(2)/(35)+(2)/(63)+(2)/(99)+(2)/(15)．

简便计算 53×54+54×16+69×25+21×69	（(3)/(214)-(2)/(213)）×214×213
(5)/(6)×(1)/(13)+(5)/(9)×(2)/(13)+(5)/(18)×(6)/(13)	(2)/(3)+(2)/(15)+(2)/(35)+(2)/(63)+(2)/(99)+(2)/(15)．

简便计算
53×54+54×16+69×25+21×69 （(3)/(214)-(2)/(213)）×214×213简便计算
53×54+54×16+69×25+21×69
（(3)/(214)-(2)/(213)）×214×213(3)/(214)-(2)/(213)）×214×213(3)/(214)33214214(2)/(213)）×214×213(2)/(213)22213213 (5)/(6)×(1)/(13)+(5)/(9)×(2)/(13)+(5)/(18)×(6)/(13) (2)/(3)+(2)/(15)+(2)/(35)+(2)/(63)+(2)/(99)+(2)/(15)．(5)/(6)×(1)/(13)+(5)/(9)×(2)/(13)+(5)/(18)×(6)/(13)(5)/(6)×(1)/(13)+(5)/(9)×(2)/(13)+(5)/(18)×(6)/(13)(5)/(6)5566(1)/(13)+(5)/(9)×(2)/(13)+(5)/(18)×(6)/(13)(1)/(13)111313(5)/(9)×(2)/(13)+(5)/(18)×(6)/(13)(5)/(9)5599(2)/(13)+(5)/(18)×(6)/(13)(2)/(13)221313(5)/(18)×(6)/(13)(5)/(18)551818(6)/(13)(6)/(13)661313(2)/(3)+(2)/(15)+(2)/(35)+(2)/(63)+(2)/(99)+(2)/(15)．(2)/(3)+(2)/(15)+(2)/(35)+(2)/(63)+(2)/(99)+(2)/(15)．(2)/(3)2233(2)/(15)+(2)/(35)+(2)/(63)+(2)/(99)+(2)/(15)．(2)/(15)221515(2)/(35)+(2)/(63)+(2)/(99)+(2)/(15)．(2)/(35)223535(2)/(63)+(2)/(99)+(2)/(15)．(2)/(63)226363(2)/(99)+(2)/(15)．(2)/(99)229999(2)/(15)．(2)/(15)221515

Answer 1

（1）53×54+54×16+69×25+21×69，=（53+16）×54+69×25+21×69，=69×54+69×25+21×69，=（54+25+21）×69，=100×69，=6900；（2）（3214-2213）×214×213，=3214×214×213-2213×214×213，=639-428，=211...