小数乘除法计算题与答案.docx
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1、0.35110.160.00489.9845.763=7.152290.753.33.680.2517.28157.327.50.9216.90.131.553.93.70,01613.760.8=1300.3970.059211.0085.20.68.41.3.40.54.480.43.1210.923.21.7920.02514=小数乘除法计算题85.441642.847101.7967.515230.465.346.1211.34.538.421.24360.7362343.51235.21739.6240.590.0323.6256.210.032101.451.30.2791.23.
2、80.7560.185.031.652071501900.660.311.971.569.62.938.40.8150.06244.22.27.982.45.62.93.771.80.02965.220.39.990.024825016.246.7861.921.5660.19984.670.952.441.6666.19.4320.0025.66.54.20312.210.16264.882.95.614.38.92.45.5559.770.020.01886436.414.15224.12321.361.3845.18.78832.6610.0590.24.2681.7302.50.195
3、47.0584728.74158.6575.79.42.8517.86.41.54.92.50.880.01187.2556324.926.961113.927.352.25.5555.22.223.337.6588536.020.356.78828.8867.3926650.9310.806454.24(循环小数的用简便方法,除不尽保存2位小数):8.20.120.80.976.45.44.731.251.268.330.8914.151.571.04324214.362.78.336.21.70.032.410.70.765.321.3456.673.44用竖式计算0.3961.2=0.7
4、560.36=15.613=0.1815=0.332.1202.82.73.0636=0.040.12=3.842.65.25x535.4x4.20.0420.540.760.3226.25148.680.022680.24320.250.042.523.41.08250.120.50.16=0.01158.568270.00964.80.25=0.1251.4(保存两位小数)1.20.182.50.7=(保存三位小数)3.57110.7512.5=(用乘法验算)0.8629.383、脱式计算能简算的要简算)10.13.3=(商用循环小数)3.060606063.259.04= (用除法验算)
5、2.57.1 416.1299 + 16.125.20.9+0.97116125.587.2899+7.284.3500.264-2.640.57284362.682615.7+15.724(2.275+0.625)0.283.94+34.30.27850.81210.81.2(9.62.4)4.88.91.14.72.75.43.93.69.85-5.46146.01356.862308.053.4+7.66.584.50.92.80.51.5834.9726.6492.9832+4.9-0.94.84.80.5(1.25-0.125)8362.494.8100.156.599+56.57.
6、0910.8-0.87.09480.48565070.94.85+0.351.48.717.4-8.77.412.50.42.585.1871000.873.16+4.649.51010.68(5.2-3.5)X1.257.3892959.50.540.50.810.1134.8X(152.4)9306.81+6.81990.25185404.40.83.40.868118500.8(9.37+9.37+9.37+9.37)2.52.376.3+2.373.793,723.72.51.250.323.810.12.5(3.80.04)7.69101138.380.38776.693.810.1
7、0.2539+0.250.12572460.33+540.3338.3810933(85.27)1.256.81+6.81990.251854052.768118506.80.750.53.750.125-2.751.53+23.47.210.227.254,789.59913.50.9812.58.8940.5解决问题:13.231101.一台榨油机每小时榨油0.45吨,4台这样的榨油机3.5小时榨油多少吨2 .小华和小川两人同时从乙地分别向甲、丙两地背向而行,小华每小时走3.2千米,小川每小时走2.6千米,走了4小时两人相距多远(用两种方法解答)3 .一批煤方案每天烧0.6吨,可以烧70天
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