41.2*8.1+11*1.25+53.7*1.9 如何简便计算?(脱式)*是乘号
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41.2*8.1+11*1.25+53.7*1.9如何简便计算?(脱式)*是乘号41.2*8.1+11*1.25+53.7*1.9如何简便计算?(脱式)*是乘号41.2*8.1+11*1.25+53.
41.2*8.1+11*1.25+53.7*1.9 如何简便计算?(脱式)*是乘号
41.2*8.1+11*1.25+53.7*1.9 如何简便计算?(脱式)
*是乘号
41.2*8.1+11*1.25+53.7*1.9 如何简便计算?(脱式)*是乘号
41.2*8.1+11*1.25+53.7*1.9
=41.2*8.1+53.7*(10-8.1)+11*1.25
=41.2*8.1+53.7*10-53.7*8.1+11*1.25
=53.7*10-(53.7-41.2)*8.1+11*1.25
=537-12.5*8.1+1.1*12.5
=537-12.5*(8.1-1.1)
=537-87.5
=449.5
41.2×8.1+11×1.25+5.37×1.9=?能简算要简算
41.2*8.1+11*1.25+53.7*1.9 如何简便计算?(脱式)*是乘号
41.2*8.1+11*1.25+53.7*1.9 如何简便计算?(脱式)*是乘号
41.2*8.1+11*1.25+537*0.
41.2×8.1+11×9.25+537×0.19 要巧算的,下午要交!
41.2×8.1+11×9又4分之1+53.7×1.9
41.2*8.1+11*1.25+53.7*1.9简便计算
53.7*1.9+41.2*8.1+11*1.25的简便运算
41.2乘8.1+11乘1.25+53.7乘1.9
41.2*8.1+11*1.25+53.7*1.9的简算
简便计算41.2*8.1+11*1.25+53.7*1.9急待解决.
简便计算41.2*8.1+11*1.25+53.7*1.9
简便计算,41.2×8.1+11×1.25+53.7×1.9
41.2乘8.1+11乘1.25+3.7乘1.9
41.2×8.1+11×1.25+5.37×19简便计算
41.2*8.1+11*1.25+537*0.19的简便算法
41.2×8.1+11×1.25+53.7×1.9=(要求简便计算)
41.2×8.1+11×1.25+5.37×19简便计算