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1、二、请用简便方法计算下列各题：0.250.28 0.1253.22.5 3540.2 0.2540.254 3.59.9 3.599+3.5 3.5101-3.5 3.59.9+3.50.1 3.52.7+350.733.52.7-3.50.7 (32+5.6)0.8 3.50.6-0.50.64.93.5 70.254 70.125 8 7.35(7.350.25) 7.35(7.350.25) 7.325-(5.325+1.7)3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.57.325-3.29-3.325 7.325-(5.325+1.7) 7.
2、325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.290.254 0.1258.8 63.42.50.4 4.91.4 3.9（1.35） （7.71.54）0.7 2.52.4 2.745 0.351.2520.8 32.40.90.132.4 150.2528.610128.6 0.8615.70.8614.7 2.4102147.322.68 2.648.677.3611.33 2.311.20.5（2.50.25）0.4 9.161.50.59.16 3.63.60.57.60.80.27.6 0.85199 0.258.54 0.2536 0.1253.22
3、.5 3540.24.025.40.98 5.171.83.2 13.75(3.756.48)3.687.562.68 7.852.340.854.66 35.61.815.67.23.822.90.189.1 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)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
4、.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 7.0910.80.87.094.23.5 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(2346.5) 17.8(1.784)5.8324.27 (45.932.7)8
5、0.125 9.7999.74.3612.58 15.613.115.615.62.1 0.6510127.53.77.53.7 8.542.50.4 3.834.563.835.446.3+4.82+3.70.82 30710.1 0.451813243.756.3 0. 3212.52.5 5.61.257.6277.61747.6 721.258 2704.5 7.32.77.32.7 （7.715.4）7 9.934 1.51.28.81.5 4.78.35.28.30.83 7.1241.124 4502.52 12.58.8 （1251.25）0.8 3.50.43.50.6 39（1.35） 2.240.64 4.8352.175 423.5 26.70.557.5 48.42.7851.60.48 0.6710.16.7 3.63.60.5 1
