小数加减乘除法简便运算练习题.docx

1、小数加减乘除法简便运算练习题小数简便运算练习(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+3.242.35+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 7.54.96.53.070.381.62 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（3.70.8

2、4） 36.541.764.54 0.250.7347.60.80.27.6 0.85199 0.258.541.288.60.728.6 12.50.960.8 10.49.60.350.8（4.31.25） 3.123.1299 28.610128.6-1-（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 9300.6563.42.50.4 4.91.4 3.9（1.35）（7.71.54

3、）0.7 2.52.4 2.7450.351.2520.8 32.40.90.132.4 150.257028 15（0.150.4） 4.252.59.90.17小数简便运算练习(二)班级 姓名 得分-2-4.025.40.98 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+3.64 15.75+3.590.59+14.

4、25 42.5(6.071.13)73.81.6413.85.36 66.868.661.34 0.2516.243.723.56.283.5 36.83.96.12 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 3.94.16.15.9-3-0.491.4 1.252.532 3.60.623.6510.1 3.63

5、.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

6、出相同因数再运用乘法分配律进行计算-4-0.258.54 12.50.960.8 0.250.734 4.3612.580.2516.24 1.252.532 3.20.2512.5 0.2536(1.250.125)8 4.810.1 3.6102 0.391990.32403 3.6510.1 0.859.9 3.723.56.283.515.62.115.61.1 4.87.8780.52 56.59956.57.0910.80.87.09 1.879.90.187 4.2994.23.84.563.835.44 9.7999.7 27.53.77.53.73.140.6831.40.0

7、32 7.20.22.41.4 5.411-5.47.74（2.81.3）1.52.26 3.92.73.97.3 12.79.91.272.316+2.323+2.3 3.654.7 36.50.37 1010.87-0.918746572386 10.716.1-15.110.7 7.60.80.27.61.288.60.728.6 10.60.359.60.35 8.91.01 0.65101480.56440.48 0.2793430.657279 0.2645192640.4819.161.530.05391.6 0.12596 12.510.8 （204）0.25-5-452150

8、2.1 451.585.515.8 257.30.4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 12.5320.252.532 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 0.2548-6-四、 变一变，能简算。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。480.5

9、6440.48 0.2793430.657279 0.2645192640.4819.161.530.05391.6 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 9.992.223.333.343.71.40.05 720.81+10.4 1.425+3.451.5102 1.250.70.8 2.73.7+0.37738.799 0.8（12.51.25） 1.250.4802.551.030.2 321

10、.25 0.4599-7-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6.94.83.1 47.87.45+8.8 0.398+0.36+3.64 9.64.83.65.171.83.2 4.025.40.98 3.687.562.68 0.2516.245.272.860.661.63 73.81.6413.85.36 15.75+3.590.59+14.25-8-7.852.340

11、.854.66 35.61.815.67.2 3.822.90.189.10.4566.223.78 15.89(6.755.89) 13.75(3.756.48) 3.610266.868.661.34(1.250.125)813.354.682.657.140.532.47-9-3.723.56.283.5 36.83.96.1 4.87.8780.52 56.59.956.515.613.115.615.62.1 4.8100.1 7.0910.80.87.09 324.90.925.48(9.40.52) 4.23.5 3201.258 18.769.918.763.522.50.4

12、3.94.16.15.9 5.63.59.60.80.44.2994.2 17.8(1.784) 0.491.41.252.5323.6510.1 15.20.254 0.89100.1 146.5(2346.5)103.834.563.835.44 4.3612.58 9.7999.78.91.0127.53.77.53.7 8.542.50.4 0.651013.20.2512.5(45.9 32.7)80.125 3.140.68 31.40.0325.61.250.82.50.47.20.22.41.4 7.74（2.81.3）1.52.26 3.92.73.97.3181.80.12

13、50.8 12.79.91.2721（9.33.7）5.6 15.02-6.8-1.02 5.411-5.42.316+2.323+2.3 9.43-（6.28-1.57） 3.654.736.50.371146572386 13.70.253.74 2.229.9+6.666.71010.87-0.9187 10.716.1-15.110.7 0.791994.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.242.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.980.134+2.66+0.866 1.2

14、7+3.9+0.73+16.1 7.54.96.53.070.381.62 1.293.72.716.3 82.451.553.251.790.591.75 23.40.813.47.2 0.32403123.20.364.81.64 1.233.40.236.6 0.253612.7（3.70.84） 36.541.764.54 0.250.7347.60.80.27.6 0.85199 0.258.541.288.60.728.6 12.50.960.8 10.49.60.350.8（4.31.25） 3.123.1299 28.610128.60.8615.70.8614.7 2.410

15、2 2.311.20.5147.322.68 2.648.677.3611.33 7028（2.50.25）0.4 9.161.50.59.16 3.63.60.51363.42.50.4 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 32.40.90.132.4 150.254.51.8 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 4.71.251.61.25881.256.40.25 4.60.35+4.60.65142.551.5+1.5+6.45

16、1.5 2.95101-2.9512.550.163.210.1 0.52105 10.014.5590.251.80.9+0.18 5.40.68+3.420.46 8.99.9+110.99（1.25+0.25）16 23.9-0.60.6-0.643.70.442.59.7312.50.8 7.84.863.9 1.98.80.8828.94289 0.77770.7+0.11112.18881.6+2223.6920.9+7.2 4.87.8780.52 1.879.90.1873.140.6831.40.032 7.20.22.41.4 4.215988.47.74（2.81.3）1

17、.52.26 12.79.91.272.316+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2

18、3.5，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（ ）=72.08166、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 7.85

19、2.340.854.66 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 36.83.96.1 324.90.925.48(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+0.1

20、9+2.81 1.76+0.195+3.242.35+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 7.54.96.53.070.381.62 1.293.72.716.3 82.451.55173.251.790.591.75 23.40.813.47.2 3.20.364.81.641.233.40.236.6 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 (1.250.1

21、25)8 3.6102 3201.2583.723.56.283.5 1 4.87.8780.52 0.8100.15.613.115.615.62.1 4.23.5 7.0910.80.87.0918.769.918.76 3.522.50.4 56.59.956.5515.613.115.615.62.1 4.87.8780.52 4.23.54.8100.1 56.59.956.5 7.0910.80.87.0918.769.918.76 3.522.50.4 3201.2589.60.80.4 4.2994.2 15.20.254 0.89100.117.8(1.784) 0.491.

22、4 1.252.532 3.6510.13.834.563.835.44 9.7999.7 3.140.6831.40.03227.53.77.53.7 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 12.79.91.2721（9.33.7）5.6 5.411-5.4 4.51.8 4.23.51863.42.50.4 4.91.4 3.9（1.35） 9300.

23、657.71.54）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 4.63.51.288.60.728.6 12.50.960.8 10.49.60.35 0.25360.250.734 0.32403 46572386 0.7919913

24、.70.253.74 2.229.9+6.666.7 2.316+2.323+2.31010.87-0.9187 10.716.1-15.110.7 3.654.736.50.374.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.242.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98190.134+2.66+0.866 1.27+3.9+0.73+16.1 7.54.96.53.070.381.62 1.293.72.716.3 82.451.553.251.790.591.75 23.40.813.

25、47.2 12.7（3.70.84）3.20.364.81.64 1.233.40.236.6 36.541.764.540.250.734 0.25360.324037.60.80.27.6 0.85199 0.258.541.288.60.728.6 12.50.960.8 10.49.60.35200.8（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 3.63.60.5（8+0.8）1.25 0.254.4-0.250.4 2.361014.51.8 4.23.5 9300.6563.42.50.4 4.91.4 3.9（1.35）（7.71.54）0.7 2.52.4 2.745210.351.2520.8