(精华版)小数加减乘除法简便运算练习题.doc

小数简便运算练习(一)班级 姓名 得分 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 0.324033.20.364.81.64 1.233.40.236.6 0.253612.7（3.70.84） 36.541.764.54 0.250.7347.60.80.27.6 0.85199 0.258.54 1.288.60.728.6 12.50.960.8 10.49.60.350.8（4.31.25） 3.123.1299 28.610128.6（4.236.17）0.8 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 3.63.60.54.51.8 4.23.5 9300.65 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 32.40.90.132.4 150.25 7028 15（0.150.4） 4.252.59.90.17小数简便运算练习(二)班级 姓名 得分 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 47.87.45+8.80.398+0.36+3.6415.75+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(9.40.52)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)80.125 9.7999.74.3612.58 15.613.115.615.62.1 0.6510127.53.77.53.7 8.542.50.4 3.834.563.835.44小数乘法简便计算练习题班级 姓名小数乘法的简便计算的方法：1、乘法交换律与结合律、分配率的运用。（整数的运算定律在小数中同样适用）2、表面上看来，左右两边没有相同的因数，不能使用乘法分配律。我们可以通过变一变，分一分的方法找出相同因数再运用乘法分配律进行计算0.258.54 12.50.960.8 0.250.734 4.3612.58 0.2516.24 1.252.532 3.20.2512.5 0.2536(1.250.125)8 4.810.1 3.6102 0.39199 0.32403 3.6510.1 0.859.9 3.723.56.283.5 15.62.115.61.1 4.87.8780.52 56.59956.5 7.0910.80.87.09 1.879.90.187 4.2994.2 3.84.563.835.44 9.7999.7 27.53.77.53.7 3.140.6831.40.032 7.20.22.41.4 5.411-5.4 7.74（2.81.3）1.52.26 3.92.73.97.3 12.79.91.27 2.316+2.323+2.3 3.654.7 36.50.37 1010.87-0.9187 46572386 10.716.1-15.110.7 7.60.80.27.6 1.288.60.728.6 10.60.359.60.35 8.91.01 0.65101 480.56440.48 0.2793430.657279 0.2645192640.481 9.161.530.05391.6 0.12596 12.510.8 （204）0.254521502.1 451.585.515.8 257.30.4小数乘法的简便运算姓名 学号 成绩一、 乘法交换律与结合律的运用。 4.560.42.5 12.52.70.8 12.5320.25 2.532 12.556 250.36二、 乘法分配律的运用。 0.2510.4 12.58.8 990.353.71.82.71.8 95.70.286.30.280.282 1.0891.08三、 比较乘法结合律与分配律在简便运算时的区别（下面各题用不同的方法简算）。12.588 12.588 0.2548 0.2548表面上看来，左右两边没有相同的因数，不能使用乘法分配律。四、 变一变，能简算。480.56440.48 0.2793430.657279 0.2645192640.481 9.161.530.05391.6 3140.0433.147.231.40.15五、 用自己喜欢的方法做一做。5310.1 4.26.513.494.2 257.30.40.12596 12.510.8 （204）0.254521502.1 451.585.515.8 9.992.223.333.34 3.71.40.05 720.81+10.4 1.425+3.451.5102 1.250.70.8 2.73.7+0.37738.799 0.8（12.5 1.25） 1.250.4802.551.030.2 321.25 0.4599 甲有存款4000元，乙有存款2400元，乙从存款中取出一些后，甲的存款正好是乙现在的5倍。乙取出多少元钱？ 有一堆煤，如果用甲种车一次运完，需要36辆; 如果用乙种车一次运完，需要45辆。已知甲种车比乙种车每辆多运1.5吨。问这批煤共有多少吨？小数乘法简便计算236.94.83.147.87.45+8.80.398+0.36+3.649.64.83.65.171.83.24.025.40.983.687.562.680.2516.245.272.860.661.6373.81.6413.85.3615.75+3.590.59+14.257.852.340.854.6635.61.815.67.23.822.90.189.10.4566.223.78 15.89(6.755.89) 13.75(3.756.48) 3.610266.868.661.34(1.250.125)813.354.682.657.140.532.473.723.56.283.5 36.83.96.1 4.87.8780.52 56.59.956.515.613.115.615.62.1 4.8100.1 7.0910.80.87.09 324.90.9 25.48(9.40.52) 4.23.5 3201.258 18.769.918.763.522.50.4 3.94.16.15.9 5.63.5 9.60.80.4 4.2994.2 17.8(1.784) 0.491.4 1.252.532 3.6510.1 15.20.254 0.89100.1 146.5(2346.5) 3.834.563.835.44 4.3612.58 9.7999.7 8.91.01 27.53.77.53.7 8.542.50.4 0.65101 3.20.2512.5 (45.932.7)80.125 3.140.6831.40.032 5.61.250.82.50.4 7.20.22.41.4 7.74（2.81.3）1.52.26 3.92.73.97.3 181.80.1250.8 12.79.91.27 21（9.33.7）5.6 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 46572386 13.70.253.74 2.229.9+6.666.7 1010.87-0.9187 10.716.1-15.110.7 0.79199 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+1.98 0.134+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 82.451.55 3.251.790.591.75 23.40.813.47.2 0.32403 3.20.364.81.64 1.233.40.236.6 0.2536 12.7（3.70.84） 36.541.764.54 0.250.734 7.60.80.27.6 0.85199 0.258.54 1.288.60.728.6 12.50.960.8 10.49.60.35 0.8（4.31.25） 3.123.1299 28.610128.6 0.8615.70.8614.7 2.4102 2.311.20.5 147.322.68 2.648.677.3611.33 7028 （2.50.25）0.4 9.161.50.59.16 3.63.60.563.42.50.4 4.91.4 3.9（1.35） （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 4.51.8 4.23.5 9300.65小数乘除法简便计算专项练习 班级： 姓名： 一、计算1.253.20.25 4.71.251.6 1.2588 1.256.40.25 4.60.35+4.60.652.551.5+1.5+6.451.5 2.95101-2.95 12.550.163.210.1 0.52105 10.014.5 590.25 1.80.9+0.18 5.40.68+3.420.46 8.99.9+110.99（1.25+0.25）16 23.9-0.60.6-0.64 3.70.442.59.7312.50.8 7.84.863.9 1.98.80.88 28.94289 0.77770.7+0.11112.1 8881.6+2223.6 920.9+7.2 4.87.8780.52 1.879.90.187 3.140.6831.40.032 7.20.22.41.4 4.2988.4 7.74（2.81.3）1.52.26 12.79.91.27 2.316+2.323+2.3 3.654.736.50.374.6572.386 2.229.9+6.666.7 1010.87-0.9187 二、填空1、已知25.160.37=68，直接写出下列各式的得数。 251.63.7= 0.25150.37= 2.51637= 25.160.037= 2.5160.037= 25.16（ ）=6.82、1吨36千克=（ ）吨 84分=（ ）小时 15千克15克=（ ）千克 36小时=（ ）天3、将3.181.8、3.180.8、3.181.2、3.181、3.180.99从小到大的顺序排列 （ ）4、7.070.3商是23.5，余数是（ ）5、根据21234=7208，在（ ）里填上合适的数。2.1234=（ ） （ ）34=0.72082.12（ ）=7.208 21.20.34=（ ） 0.0212340=（ ） 0.212（ ）=72.086、两个数相乘，小马虎把第一因数30.95中的9写成了6，结果积比正确答案少0.81，那么另一个因数是多少？五年级数学简便计算练习卷下面各题怎样算简便就怎样算。（1）小数加减法计算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+3.64 15.75+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 15.02-6.8-1.02324.90.9 146.5(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）小数乘法计算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 13.70.253.74 2.229.9+6.666.7 2.316+2.323+2.3 1010.87-0.9187 10.716.1-15.110.7 3.654.736.50.37 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 1.293.7