小學四年級小數(shù)乘除法計算題300道

1、1185.441641.84721.7967.5105230.40.6121.24360.7362343.51235.21739.6246.210.032101.451.30.2791.23.80.7560.180.660.311.971.569.62.938.40.8150.0615.62.93.771.80.02965.220.39.990.024.670.952.441.6666.19.4320.0025.66.54.882.90

2、.614.38.92.45.5559.770.021.3845.18.788312.6610.0590.24.2681.75.75.79.462.8517.86.41.54.912.50.885.5555.22.223.337.6588536.020.356.788（循環(huán)小數(shù)的用簡便方法，除不盡保留2位小數(shù)）：8.20.120.80.976.45.44.731.251.2324214.362.78.336.21.70.032.410.7

3、0.3961.2=0.7560.36=15.61.3=0.181.5=0.0251.4=13.0636=0.040.12＝3.842.6≈5.763＝17.152290.753.33.680.2516.90.131.553.93.70.01613.760.8=5.20.618.41.36.40.54.480.415.25535.44.20.0420.540.760.320.250.0462.523.41.08250.120.50.16＝

4、4.80.25＝0.1251.4≈（保留兩位小數(shù)）2.50.7=（保留三位小數(shù)）10.13.3=（商用循環(huán)小數(shù)）10.7512.5=（用乘法驗算）3.259.04=（用除法驗算）3能簡算的要簡算2.57.1416.1299＋16.125.20.9＋0.97.28997.284.3500.264－2.640.52615.7＋15.724(2.275＋0.625)0.283.9434.30.21.2(9.62.4)4.88.91.14.72

5、.75.43.93.69.855.468.053.47.66.584.50.92.80.51.5832＋4.9－0.94.8－4.80.5(1.25－0.125)84.8100.156.599＋56.57.0910.8－0.87.094.850.351.48.717.48.77.412.50.42.580.873.164.649.51010.68（5.23.5）1.2540.50.810.184.8（152.4）6.816.81990.

6、25185404.40.8－3.40.8(9.37937937937)252.376.32.373.72.51.250.323.810.12.5(3.80.04)7.691013.810.10.25390.250.12572460.33540.33(85.27)1.256.816.81990.25185406.80.750.53.750.125–2.751.5323.47.29.59913.50.9812.58.837.52.5=2.2

7、4.3=9.57.1=3.51.6=5.22.8=7.81.6=9.64.1=104.2=5.12.5=4.13.4=1.23.8=9.64.1=7.81.6=3.51.6=4.41.4=2.92.1=3.51.2=4.83.4=6.92.5=2.57.8=85.4=6.92.5=23.5=6.82.2=4.75.4=4.18.8=2.25.5=9.62.1=1.73.8=7.43.6=0.80.23=1.62.4=4.73.5=1.2

8、3.6=1.53.8=2.81.2=7.32.7=7.32.7=6.23.7=4.23.9=0.540.65=7.55.2=0.70.5=0.320.47=8.36.3=7.20.42=0.480.52=0.80.25=43.50.65=0.320.16=0.350.55=0.870.8=0.240.08=0.920.37=1.40.6=3.64.2=0.720.48=6.83.2=7.13.4=0.420.66=0.320.68=2.