1、2.5 17.86.4 1.54.9 2.50.885.5555.2 2.223.33 7.65885 36.020.3 56.7883 5.62.9 0.0296 5.220.3 9.990.02 4.672.44 1.6666.1 9.4320.002 6.5 4.884.3 2.4 5.555 9.770.021.3845.1 4.2681.3 1.54.97.65885 5.36.3 9.91.49.1 5.594.8 1.31.62.17.6 3.82.3 8.70.10.4 2.83.5 8.7888575.7 2.50.88 36.020.3 4.47.3 6.42.4 0.67
2、 0.25.6 4.63.8 3.82.3 1.89.6 1.74.7 9.81.1 2.661 9.462.85 5.5555.2 56.788 3 48.8 12.484 4.21.8 9.48.4 9.15.6 9.6 6.14.8 8.68.9 7.79.9 2.98.2 1 0.0596.4 2.223.33 0.15.3 4.10.8 9.81.3 8.66.5 0.54.6 229.57 0.41.9 17.9 27.55.7 0.37.6 3.49 3.91.7 3.771.8 185.4416 41.847 21.79 67.5105 230.40.6 121.24366.2
3、10.03 0.660.3 15.62.94.670.9 0.73623 2101.4 11.971.5 3.771.8 52.44 43.512 51.30.27 69.696 6.1 35.217 9 1.23.8 38.40.8 5.220.3 9.43239.624 0.7560.18 150.06 9.990.02 5.66.5 4.880.614.3 8.955 9.770.02 8.20.12 0.876.45.4 4.73 3242 14.362.7 8.336.2 1.7 56.788 1.251.2 2.410.7 1.3845.1 8.7883 12.6610.0590.
4、2 4.2685.7 9.462.85 17.86.4 1.54.9 0.3961.2= 0.7560.36= 15.61.3= 0.181.5= 0.0251.4= 13.0636=0.040.12 3.842.6 5.76316.90.13 5.20.6 15.2550.250.046 17.1522 3.9 18.41.335.44.2 2.523.4 90.753.33.70.016 6.40.5 0.0420.54 25 3.680.25 13.760.8= 4.480.4 0.760.32 0.120.16 1.55 1.080.25 0.1251.4(保留两位小数)2.50.7=
5、 (保留三位小数) 10.13.3= (商用循环小数)10.7512.5= (用乘法验算) 3.259.04= (用除法验算)36.020.3(循环小数的用简便方法,除不尽保留2位小数):8.20.9 76.45.4 4.742 14.362.7 8.330.03 56.788 1.253、脱式计算(能简算的要简算)2.57.14 16.129916.12 5.20.90.97.2899+7.28 4.3500.2 642.640.52615.715.724 (2.275 0.625)0.28 4.40.83.40.83.94+34.30.2 1.2(9.62.4)4.8 8.91.14.7 2.75.43.9 3.69.85-5.46 8.053.4+7.6 6.584.50.9 2.80.5+1.58 4.8 (15 2.4)324.90.9 4.84.80.5 (1.250.125)8100.1 56.59956.5 7.0910.80.87.094.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4 12.50.40.873.16+4.64 9.5101 0.68 (5.2 -3.5) 1.2540.5 0.81 0.18 6.81+6.8199 0.2518540
copyright@ 2008-2022 冰豆网网站版权所有
经营许可证编号:鄂ICP备2022015515号-1