101*0.41-0.41怎样简便计算?

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101*0.41-0.41怎样简便计算?
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101*0.41-0.41怎样简便计算?
101*0.41-0.41怎样简便计算?

101*0.41-0.41怎样简便计算?
101*0.41-0.41
=(101-1)*0.41
=100*0.41
=41

提取公因数0.41
原式=0.41*(101-1)
=0.41*100
=41

0.41*(101-1)=0.41*100=41