小數(shù)簡便計(jì)算練習(xí)題.doc

五年級(jí)數(shù)學(xué)簡便計(jì)算練習(xí)卷下面各題怎樣算簡便就怎樣算。（1）小數(shù)加減法計(jì)算6.94.83.1 0.4566.223.78 15.89(6.755.89)4.025.40.98 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 73.81.6413.85.3647.87.45+8.8 0.398+0.36+3.6415.75+3.590.59+14.2566.868.661.34 36.83.96.1 324.90.9 25.48(9.40.52) 3.94.16.15.9 15.02-6.8-1.02 324.90.9 146.5(2346.5) 9.43-（6.28-1.57）4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.980.134+2.66+0.866 1.27+3.9+0.73+16.1 7.54.96.5 3.070.381.62 1.293.72.716.3 82.451.553.251.790.591.75 23.40.813.47.2 3.20.364.81.64 1.233.40.236.6 12.7（3.70.84） 36.541.764.54147.322.68 2.648.677.3611.33 （2）小數(shù)乘法計(jì)算0.2516.24 (1.250.125)8 3.6102 3201.258 3.723.56.283.5 1 4.87.8780.52 0.8100.1 5.613.115.615.62.1 4.23.5 7.0910.80.87.0918.769.918.76 3.522.50.4 56.59.956.5 515.613.115.615.62.1 4.87.8780.52 4.23.5 4.8100.1 56.59.956.5 7.0910.80.87.09 18.769.918.76 3.522.50.4 3201.258 9.60.80.4 4.2994.2 15.20.254 0.89100.1 17.8(1.784) 0.491.4 1.252.532 3.6510.1 3.834.563.835.44 9.7999.7 3.140.6831.40.032 27.53.77.53.7 8.542.50.4 0.65101 3.20.2512.5 (45.932.7)80.125 5.61.250.82.50.4 4.3612.587.20.22.41.4 8.91.01 7.74（2.81.3）1.52.263.92.73.97.3 181.80.1250.8 12.79.91.27 21（9.33.7）5.6 5.411-5.4 4.51.8 4.23.5 63.42.50.4 4.91.4 3.9（1.35） 9300.65 7.71.54）0.7 2.52.4 2.745 15（0.150.4）0.351.2520.8 32.40.90.132.4 150.25 （2.50.25）0.4 9.161.50.59.16 3.63.60.5 70280.8（4.31.25） 3.123.1299 28.610128.60.8615.70.8614.7 2.4102 2.311.20.57.60.80.27.6 0.85199 0.258.54 4.63.5 1.288.60.728.6 12.50.960.8 10.49.60.35 0.25360.250.734 0.32403 46572386 0.79199 13.70.2