200.5*0.1+2.005*490+0.2005*5000简便运算
200.5*0.1+2.005*490+0.2005*5000简便运算
数学人气:208 ℃时间:2019-11-07 21:36:14
优质解答
原式=2005*0.01+2005*0.49+2005*0.5 =2005*(1) =2005
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