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1、小数乘除法计算题85.4416 42.847 101.79 67.515 230.465.34 6.12 11.3 4.5 38.421.24360.590.736230.03243.5123.62535.2175.0339.6241.656.210.032072101.415051.30.2719091.23.8240.7560.184.20.660.32.211.971.57.9869.62.92.438.40.848150.062505.62.93.771.80.02965.220.39.990.0216.244.670.94.2036.78652.4412.21.921.6666.11
2、0.16261.5669.4320.0020.0188640.19985.66.536.44.882.9 5.614.3 8.92.4 5.555 9.770.0214.152 24.123 21.36 302.5 0.19541.3845.1 8.7883 2.661 0.0590.2 4.2681.77.0584 728.74 158.6 0.0118575.7 9.462.85 17.86.4 1.54.97.25562.50.88324.9 26.961 113.92 7.355.5555.2 2.223.33 7.65885 36.020.32.256.78828.886 7.392
3、6 650.93 10.806454.24（循环小数的用简便方法，除不尽保留 2 位小数）：8.20.12 0.80.9 76.45.4 4.7368.33 0.89 14.15 1.571.251.21.043242 14.362.7 8.336.2 1.70.030.76 5.32 1.34 56.672. 410.73. 44用竖式计算0.3961.2= 0.7560.36= 15.613= 0.1815=0.33 2.1 202.8 2.70.02514=3.0636=0.040.123.842.60.35110.160.00489.9845.7637.152290.753.33.68
4、0.2517.2816.90.131305.20.63.125.25526.25157.31.553.90.3978.41.310.9235.44.2148.6827.53.70.0160.05926.40.53.20.0420.540.022680.9213.760.8=11.0084.480.41.7920.760.320.24320.250.046 2.523.4 1.0825 0.120.50.16 0.0115 8.568 27 0.00964.80.250.1251.4（保留两位小数）1.2 0.182.50.7=（保留三位小数）10.13.3=（商用循环小数）3.571 3.06
5、060606.10.7512.5=（用乘法验算）3.259.04=（用除法验算）0.86 29.383、脱式计算（能简算的要简算）2.57.14 16.1299 16.12 5.20.90.971 1612 5.587.2899+7.28 4.3500.2 642.640.5728 43 62.682615.715.724 (2.275 0.625)0.28 3.94+34.30.2785 0.812 10.81.2(9.62.4)4.8 8.91.14.7 2.75.43.9 3.69.85-5.461 46.013 56.862 308.053.4+7.6 6.584.50.9 2.80.
6、5+1.5834.97 26.649 2.98324.90.9 4.8 4.80.5 (1.25 0.125)836 2.4 94.8100.1 56.599 56.5 7.0910.8 0.87.09480.48 5650 70.94.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4 12.50.42.58 5.1 87 1000.873.16+4.64 9.5101 0.68 （5.2 -3.5 ） 1.257.3892 959.5 0.540.5 0.81 0.18 4.8 （15 2.4）9 306.81+6.8199 0.2518540 4.40.8 3.40.868
7、1 1850 0.8(9.37+9.37+9.37+9.37) 25 2.376.3+2.373.793.7 23.72.51.250.32 3.810.1 2.5(3.80.04) 7.691011 38.38 0.38 776.693.810.1 0.2539+0.25 0.12572 460.33+540.3338.38 10 9 33(85.27) 1.25 6.81+6.8199 0.251854052.7 681 18506.80.750.5 3.750.1252.75 1.53+23.47.2 10.2 27.25 4,789.599940.513.50.9813.2312.58.8110