1、简便运算练习（1）4.025.40.98 5.171.83.2 13.75(3.756.48) 3.687.562.68 7.852.340.854.66 7.140.532.47 3.822.90.189.1 9.64.83.6 35.61.815.67.2 5.272.860.661.63 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 0.2516.24 5.48(9.40.52) 3.723.56.283.5 36.8
2、3.96.1 2 4.87.8780.52 3.6102 6.40.253.64 324.90.9 简便运算练习（2）4.84.80.5 (1.250.125)8 4.8100.1 56.59.956.5 7.0910.80.87.09 18.769.918.761.252.532 3201.258 3.522.50.4 4.780.23.44 3.94.16.15.9 0.491.4 4.23.5 3.60.62 3.6510.1 3.63.60.8 15.20.254 17.8(1.784) 9.60.80.4 4.2994.2 9.7999.7 0.89100.1 5.63.5 146.
3、5(2346.5) 5.8324.27 (45.932.7)80.125 4.3612.58 简便运算练习（3）15.613.115.615.62.1 0.65101 6.02+3.6+1.9827.53.77.53.7 8.542.50.4 3.834.563.835.44 7.54.96.5 4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 82.451.55 2.35+1.713+0.287+7.65 1.57+0.245+7.43 0.134+2.66+0.866 1.27+3.9+0.73+16.1 3.070.381.62 1.293
4、.72.716.3 0.32403 3.251.790.591.75 23.40.813.47.2 0.85199 3.20.364.81.64 1.233.40.236.6 0.2536 简便运算练习（4）12.7（3.70.84） 36.541.764.54 0.250.734 7.60.80.27.6 12.50.960.8 0.258.54 1.288.60.728.6 10.49.60.35 4.252.59.90.170.8（4.31.25） 3.123.1299 28.610128.6 2.4102 （ 4.236.17）0.8 0.8615.70.8614.7 147.322.
5、68 4.91.4 2.648.677.3611.33 2.311.20.5 3.9（1.35） （2.50.25）0.4 9.161.50.59.16 3.63.60.5 4.51.8 简便运算练习（5）4.23.5 9300.65 63.42.50.4 （7.71.54）0.7 2.52.4 0.351.2520.8 2.745 32.40.90.132.4 15（0.150.4）150.25 (1.250.125)8 7.74（2.81.3）1.52.267028 21（9.33.7）5.6 36.541.764.54 23.40.813.47.2 13.70.253.74 4.91.4 0.85199 0.2536 3.20.2512.5
