39*1/4+27*0.25+34*25%的简算

问题描述:

39*1/4+27*0.25+34*25%的简算

39*1/4+27*0.25+34*25%
=39x0.25+27x0.25+34x0.25
=(39+27+34)x0.25
=100x0.25
=25