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25乘以百分之75加38乘以0.75加4分之3乘以37用简便...

25×75%+38×0.75+3/4×37 =25×0.75+38×0.75+0.75×37 =0.75×(25+38+37) =0.75×100 =75

0.75乘65加4分之3乘34加百分之75 =0.75x65+3/4x34+75% =0.75x65+0.75x34+0.75 =0.75(65+34+1) =0.75x100 =75

36,心算,0.75提取出来,就是(22+25+1)*0.75=36

4.25×0.75+75%+4.75×3/4 =4.25×3/4+3/4+4.75×3/4 =3/4×(4.25+1+4.75) =3/4×10 =0.75×10 =7.5

1.5

题干不完整

37×3/4+4分之三乘62+4分之三 =(37+62+1)x3/4 =100x3/4 =75

=15x3/4+86x3/4-3/4

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