怎样简便就怎样算:0.5*36%+0.42*20% - 知识问答

怎样简便就怎样算:0.5*36%+0.42*20%+44%

1个回答

0.5*36%+0.42*20%+44%
=0.5*0.2*1.8+0.42*0.2+0.44
=0.2*（0.9+0.42）+0.44
=0.2*1.32+0.44
=0.264+0.44
=0.704

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