作业帮计算下列算式,要求简便41.2×8.1+11×9.25+537×0.19
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计算下列算式,要求简便41.2×8.1+11×9.25+537×0.19
计算下列算式,要求简便
41.2×8.1+11×9.25+537×0.19
计算下列算式,要求简便41.2×8.1+11×9.25+537×0.19
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
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41.2×8.1＋11×9.25＋537×0.19
＝41.2×(10-1.9)+(10＋1)×9.25＋537×0.19
＝412－41.2×1.9＋92.5＋9.25＋53.7×1.9
＝412＋92.5＋9.25＋12.5×(2－0.1)
＝412＋92.5＋9.25＋25－1.25
＝437＋100.5
＝537.5
41.2×8.1＋11×9.25＋537×0.19
＝41.2×(10-1.9)+(10＋1)×9.25＋537×0.19
＝412－41.2×1.9＋92.5＋9.25＋53.7×1.9
＝412＋92.5＋9.25＋12.5×(2－0.1)
＝412＋92.5＋9.25＋25－1.25
＝437＋100.5
＝537.5