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1、四、脱式计算（能简算的要简算）3.69.85-5.46 3.94+34.30.2 8.053.4+7.6 6.584.50.9 2.80.5+1.58 (1.250.125)84.8100.1 56.59956.5 7.0910.80.87.09 4.84.80.54.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4 12.50.42.58 324.90.9 0.873.16+4.64 9.5101 0.68 （5.2 -3.5） 1.25 3.810.140.5 0.81 0.18 4.8 （15 2.4）6.81+6.8199 0.2518540 4.40.83.40.8
2、7.69101 (9.37+937+937+937) 25 15.89(6.755.89) 0.125722.376.3+2.373.7 2.51.250.32 2.5(3.80.04) 13.50.98 0.2539+0.25 460.33+540.33 6.80.750.5 1.53+23.47.2 五、脱式计算（能简算的要简算） (85.27) 1.25 6.81+6.8199 0.2518540 3.750.1252.750.351.2520.8 32.40.90.132.4 6.94.83.1 0.4566.223.78 4.025.40.98 5.171.83.213.75(3.7
3、56.48) 324.90.9 3.687.562.68 4.8100.1 7.852.340.854.66 56.59.956.5 35.61.815.67.2 4.23.5 3.822.90.189.1 9.64.83.6 7.140.532.47 3.522.50.45.272.860.661.63 0.2516.2413.354.682.65 (1.250.125)873.81.6413.85.36 3.610247.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.25 3201.258 66.868.661.34 25.48(9.40.52)
4、3.723.56.283.5 36.83.96.1六、脱式计算（能简算的要简算）15.613.115.615.62.1 150.257.0910.80.87.09 4.87.8780.5218.769.918.76 3.94.16.15.9146.5(2346.5) 4.2994.2 3.834.563.835.44 4.3612.58 9.7999.7 7.20.22.41.4 8.91.01 7.74（2.81.3）1.52.2627.53.77.53.7 8.542.50.4 0.65101 3.20.2512.5 (45.932.7)80.125 9.60.80.4 3.140.683
5、1.40.032 5.63.5 5.61.250.82.50.4 17.8(1.784) 3.92.73.97.3 181.80.1250.812.79.91.27 1.252.532 21（9.33.7）5.6 0.491.4 15.02-6.8-1.02 5.411-5.4 2.316+2.323+2.3 9.43-（6.28-1.57） 3.654.736.50.37 3.6510.1 七、脱式计算（能简算的要简算）46572386 13.70.253.74 2.229.9+6.666.7 15.20.254 1010.87-0.9187 0.89100.110.716.1-15.110
6、.7 0.79199 4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 12.7（3.70.84）2.35+1.713+0.287+7.65 10.49.60.351.57+0.245+7.43 6.02+3.6+1.980.134+2.66+0.866 28.610128.61.27+3.9+0.73+16.1 7.54.96.5 3.070.381.62 2.311.20.51.293.72.716.3 82.451.553.251.790.591.75 0.253623.40.813.47.2 0.324033.20.364.81.64 0.258.54 1.233.40.236.6 147.322.68 36.541.764.54 0.250.7347.60.80.27.6 0.85199