1.5*80%+25*12% 用简便发法计算

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1.5*80%+25*12%用简便发法计算1.5*80%+25*12%用简便发法计算1.5*80%+25*12%用简便发法计算1.5*80%+25*12%=3/2*80/100+25*12/100=1

1.5*80%+25*12% 用简便发法计算
1.5*80%+25*12% 用简便发法计算

1.5*80%+25*12% 用简便发法计算

1.5*80%+25*12%
=3/2*80/100+25*12/100
=1.2+3
=4.2

1.5×80%+25×12%
=1.5×0.8+25×0.12
=1.2+3
=4.2

1.5*80%+25*12%
=1.5×0.8+12÷4
=1.2+3
=4.2