简算;3又5/3*25又5/2+37.9*6又5/2

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简算;3又5/3*25又5/2+37.9*6又5/2简算;3又5/3*25又5/2+37.9*6又5/2简算;3又5/3*25又5/2+37.9*6又5/23.6*25.4+37.9*6.4=(10-

简算;3又5/3*25又5/2+37.9*6又5/2
简算;3又5/3*25又5/2+37.9*6又5/2

简算;3又5/3*25又5/2+37.9*6又5/2
3.6*25.4+37.9*6.4
=(10-6.4)*25.4+37.9*6.4
=254+(37.9-25.4)*6.4
=254+12.5*6.4
=254+12.5*8*0.8
=254+100*0.8
=254+80
=334

3又5分之3乘以25又5分之2+37.9乘以6又5分之2
=91又25分之11+242.56
=334

3又5/3*25又5/2+37.9*6又5/2
=3.6*25.4+37.9*6.4
=3.6*25+3.6*0.4+37.5*6.4+0.4*6.4
=0.9*4*25+37.5*8*0.8+0.4*(3.6+6.4)
=90+240+4
=334

3又5分之3乘以25又5分之2+37.9乘以6又5分之2
=91又25分之11+242.56
=334

3又5/3*25又5/2+37.9*6又5/2
=3又10/6*25又10/4+37又10/9*6又10/4
=3又5/3*25又5/2+﹙25又5/2+12又2/1﹚*6又5/2
=3又5/3*25又5/2*6又5/2+2/5*5/16
=25又5/2*﹙3又5/3*6又5/2﹚+80
=25又5/2*10+80
=127*2+80
=334