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136×27加27×31加27×34怎样简便计算

136×27加27×31加27×34 =27×(136+31+34) =27×(200+1) =27×200+27 =5400+27 =5427

=136×(30—3) =136×30—136×3 =4080—408 =3672

简便方法计算如下: 27×137分之136+136x137分之20+180x137分之68 =(27×136+136×20+180×68)/137 =[136×(27+20)+90×2×68]/137 =(136×47+90×136)/137 =136×(47+90)/137 =136×137/137 =136 原理及解决简便计算的方法: 简便计算是一种特殊的计算,它...

136×24=3264; 860÷43=20; 350×27=9450;815÷51=15…50;204×38=7752;954÷34=28…2..

(27+20)×136/137+90×136/137 =(47+90)×136/137 =136

阴历阳历有一个是错的。

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