www.gsyw.net > 一又1/4×13.6+36÷(4/5)+30.4×1.25

一又1/4×13.6+36÷(4/5)+30.4×1.25

1又4分之1*17.6+36除以5分之4+26.4*1.25=1.25*17.6+36*(5/4)+26.4*1.25=1.25*17.6+36*1.25+26.4*1.25=1.25*(17.6+26.4+36)=1.25*80=100希望能帮到你,祝学习进步O(∩_∩)O

题目错了,应该是1又4分之1吧,否则无法简便.解法如下:1又1/4*17.6+36÷4/5+2.64*12.5 =(5/4)*17.6+36*(5/4)+2.64*12.5=1.25*17.6+36*1.25+26.4*1.25=1.25*(17.6+36+26.4)=1.25*80=100

=1.25*1.76+36*1.25+26.4*1.25 =(1.76+26.4+36)*1.25 =64*1.25 =80

1又4分之1*17.6+36÷5分之4+2.64*12.5=4分之5*17.6+36*4分之5+26.4*4分之5=4分之5*(17.6+36+26.4)=4分之5*80=100明白请采纳,有疑问请追问!有新问题请求助,谢谢!

1又1/4*17.6+36÷4/5+2.64*12.5 =5/4*17.6+36*5/4+26.4*1.25 =17.6+36+26.4*1.25 =80*1.25 =100

1又4分之一乘17.6+36除以5分之4+2.64乘12.5=1.25*17.6+36*1.25+26.4*1.25=1.25*(17.6+36+26.4)=1.25*80=100

5/4*23.5-45x5/4+31.5*1.25=5/4(23.5-45+31.5)=5/4*10=25/2

1又1/4*42.6-1.25+12.5*5.84=1.25*42.6-1.25+1.25*10*5.84=1.25*(42.6-1+58.4)=1.25*100=125

原式=1.25x17.6+36x1.25+26.4x1.25=1.25x(17.6+36+26.4)=1.25x80=100

1又1/4*17.6+36/4/5+26.4*1.25=1.25*17.6+36*1.25+26.4*1.25=1.25*(17.6+36+26.4)=1.25*80=100

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