41.2×8.1+11×9.25+53.7×1.9=41.2×(10-1.9)+(10+1)×9.25+53.7×1.9答案是537.5
41.2×8.1+11×9.25+53.7×1.9=41.2×(10-1.9)+(10+1)×9.25+53.7×1.9
