41.2*8.1+11*1.25+53.7*1.9的简算

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41.2*8.1+11*1.25+53.7*1.9的简算
41.2*8.1+11*1.25+53.7*1.9的简算

41.2*8.1+11*1.25+53.7*1.9的简算
=41.2*8.1+11*1.25+(41.2+12.5)*1.9
=41.2*(8.1+1.9)+11*1.25+12.5*1.9
=412+12.5*(1.1+1.9)
=412+12.5*3
=412+37.5
=449.5

=41.2*8.1+11*1.25+53.7*1.9+12.5*8.1-12.5*8.1
=53.7*8.1+53.7*1.9+11*1.25-12.5*8.1
=53.7*10-12.5*7
=537-12.5*(8-1)
=537-100+12.5
=449.5

41.2*8.1+11*1.25+53.7*1.9
=41.2*(10-1.9)+53.7*1.9 +11*1.25
=412+(53.7-41.2)*1.9+11*1.25
=412+1.25*19+1.25*11
=412+1.25*30
=412+37.5
=449.5

=41.2*8+41.2+11*5/4+53.7*20-53.7
=1404.85

41.2*8.1+11*1.25+537*0. 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. 41.2×8.1＋11×1.25＋5.37×1.9=?能简算要简算 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 41.2*8.1+11*1.25+53.7*1.9最简单口算方法 一道简算题 41.2×8.1+11×1.25+53.7×1.941.2×8.1+11×1.25+53.7×1.9那位大仙会做啊?今晚就要! 数学简便运算,简便运算（脱式计算）41.2×8.1+11×1.25+53.7×1.9格式：41.2×8.1+11×1.25+53.7×1.9=×××××=×××××=××× 41.2*8.1+61*1.25+537*0.19