41.2×8.1+11×9.25+537×0.19如何简便计算

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41.2×8.1+11×9.25+537×0.19如何简便计算
41.2×8.1+11×9.25+537×0.19如何简便计算

41.2×8.1+11×9.25+537×0.19如何简便计算
41.2*8.1+11*9.25+537*0.19
=41.2*8.1+53.7*1.9+11*9.25
=41.2*（10-1.9）+53.7*1.9+11*9.25
=41.2*10-（41.2-53.7）*1.9+11*9.25
=412+12.5*1.9+11*9.25
=412+（1.1+0.8）*12.5+1.1*92.5
=412+10+（12.5+92.5）*1.1
=422+（100+5）*1.1
=422+110+5.5
=537.5

41.2*8.1+11*9.25+537*0.19
=41.2*8.1+53.7*1.9+11*9.25
=41.2*（10-1.9）+53.7*1.9+11*9.25
=41.2*10-（41.2-53.7）*1.9+11*9.25
=412+12.5*1.9+11*9.25
=412+（1.1+0.8）*12.5+1.1*92.5
=412+10+（12.5+92.5）*1.1
=422+（100+5）*1.1
=422+110+5.5
=537.5

简算:41.2*8.1+11*9.25+537*0.19 41.2*8.1+11*9.25+537*0.19=? 41.2×8.1+11×9.25+537×0.19如何简便计算 41.2*8.1+11*9.25+537*0.19的简便算发 简便运算：41.2*8.1+11*9.25+537*0.19 41.2*8.1+11*9.25+537*1.19简便运算 41.2*8.1+11*9.25+537*0.19(要简便方法） 41.2×8.1+9.25+537×0.19=? 41.2*8.1+21*9.25+537*0.19 41.2×8.1＋11×9.25＋537×0.19 要巧算的,下午要交! 一道奥数题(简便运算）41.2*8.1+11*9.25+537*0.19请写出计算过程,谢谢! 41.2乘8.1+11乘9.25+537乘0.19的简便算法 计算下列算式,要求简便41.2×8.1+11×9.25+537×0.19 41.2*8.1+21*9.25+537*0.19 要求简化计算 41.2*8.1+11*1.25+537*0. 51.2*8.1+11*9.25+537*0.19 计算：41.2*8.1+11*9.25+53.7*1.9 简算41.2*8.1+11*9.25+53.7*1.9