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0.358*448+0.667*358这道题用简便结算怎么算

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0.358*448+0.667*358这道题用简便结算怎么算
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答案和解析
原式=358*0.448 + 358*0.667
=358*(0.448 + 0.667)
=358*1.115
=358*1.11 + 358*0.005
=358+35.8+3.58+1.79
=397.38+1.79
=399.17
这是我想到的最简单的方法了,