0.125*0.25*0.5*128 3.51*49+351*0.51+49*51 999999*444444/666666 简便计算

0.125*0.25*0.5*128=0.125*8*0.25*4*0.5*2*2=1*1*1*2=23.51*49+351*0.51+49*51 =3.51*(49+51)+49*51=351+49*51=300+51*(1+49)=300+2550=2850999999*444444/666666 =333333*3*2*2*111111/(2*3*111111)=333333*2=66666...