0.3961.2= 0.7560.36= 15.613= 0.1815= 0.02514= 3.0636= 0.040.12 3.842.6 5.763 7.1522 90.753.3 3.680.2516.90.13 1.553.9 3.70.016 13.760.8= 5.20.6 8.41.3 6.40.5 4.480.4 5.255 35.44.2 0.0420.54 0.760.32 0.250.046 2.523.4 1.0825 0.120.50.16 4.80.25 0.1251.4 0.430.28= 6.450.73= 4.60.6= 8.90.05= 3.080.43= 1.526.7= 5.2229= 18.723.6= 13.953.1= 2.50.7= (保留三位小数) 10.13.3= (循环小数)10.7512.5= (用乘法验算) 3.259.04= (用除法验算)