47.8-7.45+8.8 4.2*10.1 0.125+88 （201-11.28/2.4）*3.6 56.5*9.9
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47.8-7.45+8.8 =40.35+8.8 =49.15 4.2*10.1 =4.2×10+4.2×0.1 =42+0.42 =42.42 0.125*88 =0.125*8*11 =1*11 =11 （201-11.28/2.4）*3.6 =201*3.6-11.28/2.4*3.6 =200*3.6+3.6-11.28×1.5 =723.6-16.92 =707.68 56.5*9.9+5.65 =5.65*99+5.65 =5.65*（99+1） =5.65*100 =565 0.54*180/（300-255） =0.54*180/45 =0.54*4 =2.16 （1.25-0.125）*8 =1.25*8-0.125*8 =10-1 =9 45/0.09/0.5 =90/0.09 =1000 3.6*0.99 =3.6*（1-0.01） =3.6-0.0036 =3.564 17.8/（1.78*4） =17.8/1.78/4 =10/4 =2.5
