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0.47 0.5x0.8简便计算

0.47x0.5x0.8 =0.47*(0.5x0.8)=0.47*0.4=0.188

=0.47*(0.5*0.8)=0.47*0.4=0.188

您好:0.47*0.5*0.8=(0.5x0.8)x0.47=0.4x0.47=0.188 如果本题有什么不明白可以追问,如果满意请点击“采纳为满意回答” 如果有其他问题请采纳本题后另发点击向我求助,答题不易,请谅解,谢谢.祝学习进步!

0.47x0.5x0.8=0.47*0.4=0.188乘法结合律

0.4x0.5x0.8=0.4x(0.5x0.8)=0.4x0.4=0.16

0.47*0.5*0.8=0.47*(0.5*0.8)=0.47*0.4=0.188

=0.47*(0.5*0.8)=0.47*0.4=0.188

0.47*0.5*0.8=0.47*(0.5*0.8)=0.47*0.4=0.188

0.47x0.5x0.8=0.47*0.4=0.188乘法结合律

解:(方法一)原式 = (47/100)*(1/2)*(4/5) = (47/100)*(2/5) = 47/250 = 0.188 .(方法二)原式 = (0.5 0.03)*0.4 = 0.5*0.4 0.03*0.4 = 0.2 0.012 = 0.188 .

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