提取公因数9.81 就是这样 ：9.81×（ 0.1+0.5+0.4）
9.81*0.1+0.5*9.81+0.04*98.1简便计算
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相关问题
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98.1*0.01+5*9.81+0.049*981
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几道简便计算题（1）9.81X0.1+0.5X98.1+0.049X981=（2）7.8÷[(9-8.98)X2.5}
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9.81×0.1+0.5×98.1+0.049×981．
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9.81×0.1+0.5×98.1+0.049×981．
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9.81×0.1+0.5×98.1+0.049×981．
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9.81×0.1+0.5×98.1+0.049×981．
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0.9*8.1+0.81简便算法怎么算
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这道计算题怎么简算?9.81×0.1+0.5×98.1+0.049×981
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10.76-0.83+1.24-4.17 3.5/0.56 45/0.18 81.3-81.3x0.9 这几题的简便计算