问题
填空题
41.2×8.1+11×9.25+537×0.19=______．
答案
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．
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