2.5*1.25*0.32=2.5*1.25*0.4*0.8=(2.5*0.4)*(1.25*0.8)=1*1=13.8*10.1=3.8*(10+0.1)=3.8*10+3.8*0.1=38.382.4*0.8-4.48/2.82.6&订珐斥貉俪股筹瘫船凯#47;【8.06/2-3.13】*1.4这是两道题？
