12.5x0.38+1.25x4.2+0.125x20如何用简便方法计算
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12.5x0.38+1.25x4.2+0.125x20如何用简便方法计算12.5x0.38+1.25x4.2+0.125x20如何用简便方法计算12.5x0.38+1.25x4.2+0.125x20如
12.5x0.38+1.25x4.2+0.125x20如何用简便方法计算
12.5x0.38+1.25x4.2+0.125x20如何用简便方法计算
12.5x0.38+1.25x4.2+0.125x20如何用简便方法计算
12.5x0.38+1.25x4.2+0.125x20
=12.5×0.38+12.5×0.42+12.5×0.2
=12.5×(0.38+0.42+0.2)
=12.5×1
=12.5
12.5x0.38+1.25x4.2+0.125x20如何用简便方法计算
如何用简单方法计算12.5x0.38+1.25x4.2+0.125x20
1.25x4.48+12.5x0.352用简便方法
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要求简便计算:第一道:48X1.25+50X1.25X0.2X8第二道:0.12X4.8/0.12X4.8第三道:(6.8-6.8X0.55)/8.5
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0.25的2012次方x4的2013次方÷(2的99次方x0.125的33次方)