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1、-五年级小数练习题7.65885 0.1815 0.02514 3.0636 3.70.016 532.07 36.020.3 56.788 1.553.9 16.90.13 0.040.12 3.842.6 1.890.54 7.10.25 22.783.4 70.6212.250.5 73.50.1 1.6441 1.553.97.5640.89 0.152.34 0.48350 7.940.9856.24.98 36.921.3 1.968.5 80.40.35 6.251.04 0.0560.15 12.54.8 4.2285.761.3 7.1522 15.613 3.680.25
2、3.70.016 0.45102 2.050.82 6.5090.2728.4481432607 28.44814 0.582504.40.83.40.8 6-1.64 3.2（1.5+2.5）1.66.5（4.8-1.24） 5.38+7.85-5.37 56-1.193-0.430.82402. (0.88)0.125 1.2550.164.299+4.2 0.2350.1516 35（0.352）0.520.40.05 0.922.40.422.4 (1.25+0.25)4 2.95101-2.95 4.60.35+4.60.65 23.4-0.8-13.4-7.2 6310.1-630
3、.1 3.141.9+31.40.81 7.310.2-1.46 12.96-（9.6-1.52） 3.6 3.6+1.4 3.6 2.71.5-2.70.250.80.1250.4 0.412.5(4.2-1.7) 450.090.556.599+56.5 (1.25-0.125)8 17.8(1.784) 1.5（6.07+2.53）0.5 4.051.50.03 1.920.122.74.632.559.3 0.84(0.30.4) 0.841.70.073.91.35 20.9+10.5（5.23.5） （6+10.883.2）1.518.918.91.4 15.48（6.344.59
4、） 3.25.611.49.41.20.66.24 3.760.250.49 35.651.7 73.81.6413.85.36 66.868.661.34 0.2516.243.723.56.283.5 36.83.96.1 2 5.48(9.40.52)4.87.8780.52 3.6102 6.40.253.64324.90.9 4.84.80.5 (1.250.125)84.8100.1 56.59.956.5 7.0910.80.87.094.025.40.98 5.171.83.2 13.75(3.756.48)3.687.562.68 7.852.340.854.66 35.61
5、.815.67.23.822.90.189.1 9.64.83.6 7.140.532.475.272.860.661.63 13.354.682.65 47.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.25 42.5(6.071.13)4.23.5 3201.258 18.769.918.763.522.50.4 4.780.23.44 3.94.16.15.90.491.4 1.252.532 3.60.623.6510.1 3.63.60.8 15.20.2545.63.5 9.60.80.4 4.2994.20.89100.1 146.5(2
6、346.5) 17.8(1.784)5.8324.27 (45.932.7)80.125 9.7999.74.3612.58 15.613.115.615.62.1 0.6510127.53.77.53.7 8.542.50.4 3.834.563.835.44x - 0.6=1.2 x0.8=2.5 0.7x=17.5 12X-9X=8.6 X+18=48 1.2X=4 X-8 =2.4 3(X+2.1)=10.52X=6.6 X0.3=9 x - 0.6=1.2 x0.8=2.5 0.7x=17.5 5X=2.5 x0.3=9 0.5x=11.5 8X5X=27 5X7=42 4X+1.25=24.4 9(X2.7)=1.83X5X=3.2 2.5XX=6 6X+18=48 22.8=8.20.3 X+ X=69 12X-9X=8.7 6+157=141 X24=5 4X30.7=6.5 15XX=28 3X+1.5X=9 x0.51.23(X+2.1)=10.5 28+X=54.5 1.4-0.7=56 5x311=4212(x3.7)144 9X-5X=9 0.7(x0.9)=42 6x4x20.24X+1.25=24.4 52+X=75X91=1.3 4x0.95=1.8-第 2 页-