32*0.25*12.5＝4*8*0.25*12.5=(4*0.25)(12.5*8)=1*100=1006.25*3.7+0.625*62+62.5*0.01 =6.25*(3.7+6.2+0.1)=6.25*10=62.5
6.25*3.7+0.625*62+62.5*0.01 =6.25*3.7+6.25*6.2+6.25*0.1=6.25*（3.7+6.2+0.1）=6.25*10=62.5
