1、1、直接写出得数.0.452.5 0.81.25 0.33.6 0.30.3 100.07 0.31.4 0.057 0.920.4 0.20.26 0.144 0.020.1 1.20.30.20.4 8.21.8 10035.22 2.34 2.50.4 2.450.224 3.250 0.90.52 3.991 03.52 12.58810 = 10-1.8-7.2= 0.43+3.57= 2.5412= 0.90.8= 1.05100= 10.5= 0.963= 1.470.7= 5.46= 0.16.510= 0.56100= 3.78100= 40.8 = 3.215100= 0.
2、810= 4.08100= 1.10.2 =0.60.8 = 30.9= 2.50.4= 3.60.4= 12.58= 500.04=800.3 = 1.19= 0.165 1.782.2 = 9.60.6 = 1.20.5-0.4 = 0.70.01 = 2.50.4 = 123.9= 1.2581.25 = 6.60.66 = 3.92.03 2745673= 0.30.3= 7.22.8 0.90.01 120.3= 2.870.772.80.8 8.44.2 13.89.9 0.050.8 2.560.37 1.233 2、用竖式计算 0.3961.2= 0.7560.36= 15.613= 0.1815= 3.0636= 0.040.12 0.02514= 5.763 35.44.2 0.0420.54 0.760.32 0.250.046 2.523.4 1.0825 4.80.25 0.1251.4（保留两位小数）3.842.6（保留一位小数）
