1、五年级上册小数简便计算100 题练习73.81.6413.85.3666.868.661.3436.83.96.1 213.75(3.756.48)5.48(9.4 0.52)3.94.16.15.94.02 5.4 0.985.171.83.23.687.562.687.852.340.85 4.6635.61.815.6 7.247.8 7.45+8.83.822.90.18 9.19.64.83.67.140.53 2.4713.35 4.682.655.272.860.661.630.398+0.36+3.6415.75+3.590.59+14.25132 43.756.312.253
2、.10.856.176.3+4.82+3.70.8248.42.78 51.60.487.3 2.7 7.3 2.73.6 3.6 0.83.72 3.56.28 3.54.8 7.8 780.5218.76 9.91.87656.5 9.9 5.657.09 10.80.8 7.094.2 994.29.7 999.74.4.8 4.8 0.5(1.250.125) 820.5-1.074-8.35 5.55.6 1.254.36 12.5 85.83 24.2715.6 13.115.615.6 2.127.5 3.77.5 3.73.4 0.46+3.4 0.540.32 12.5 2.
3、57.6 27 7.6 1747.61.5 1.28.8 1.53.5 0.43.5 0.67.12 4 1.12 42.65 1.7 1.35 1.72.5 （ 6.2 2.6） 0.426.70.5 5 7.54.7 8.35.2 8.3 0.8348.42.7851.60.483.72 9.9+3.72 0.10.99 0.81+0.99 0.19+0.991.39 25-0.039 250（ 2.5-0.25）0.4（4.16+4.16+4.16+4.16） 2.53.78 99+3.781.25 20.37 41.25 8-0.025 8012.6（ 2.89+7.11）1.0118
4、.95（ 8.43+3.87） 2.818.95（ 8.43+3.87）2.84.2 3.53201.25 83.52 2.5 0.44.78 0.2 3.448.54 2.5 0.46.4 0.25 3.6 415.2 0.25 49.6 0.8 0.417.8 (1.78 4)3.68 4.6 6.32(45.9 32.7) 80.125 52.8 0.75 0.25 （7.715.4） 75.4 0.75 1.721.25 825.5 （ 108.98）2.5 4502.5 239（1.3 5）2.2 4 0.6 44.83 5 2.17 5（1.91.90.9）（3.8 2.8）2.3 0.25 0.465（ 0.65 4）5.4 0.75 1.52.6 0.5+7.4 2（2.31+6.69）0.038.54 2.5 0.46302.98 6.5 （3.23.12）
