小数乘除法计算题及答案[1].doc

小数乘除法计算题 85.4416 42.847 101.79 67.515 230. 21.2436 0.73623 43.512 35.217 39.6.210.03 2101.4 51.30.27 91.23.8 0.7560.660.3 11.971.5 69.62.9 38.40.8 155.62.9 3.771.8 0.0296 5.220.3 9.990.024.670.9 52.44 1.6666.1 9.4320.002 5.66.4.882.9 5.614.3 8.92.4 5.555 9.770.01.3845.1 8.7883 2.661 0.0590.2 4.2681575.7 9.462.85 17.86.4 1.54.9 2.55.5555.2 2.223.33 7.65885 36.020.3 56.788（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 4.73 1.2513242 14.362.7 8.336.2 1.70.03 2.41用竖式计算0.3961.2= 0.7560.36= 15.613= 0.1815=0.02514= 3.0636= 0.040.12 3.842.6 5.763 7.1522 90.753.3 3.680.16.90.13 1.553.9 3.70.016 13.760.8= 5.20.6 8.41.3 6.40.5 4.480.4 5.255 35.44.2 0.0420.54 0.760.250.046 2.523.4 1.0825 0.120.50. 4.80.25 0.1251.4（保留2.50.7= （保留三位小数） 10.13.3= （商用循环10.7512.5= （用乘法验算） 3.259.04= （用除法验算） 3、脱式计算（能简算的要简算）2.57.14 16.129916.12 5.20.97.2899+7.28 4.3500.2 642.62615.715.724 (2.275 0.625)0.28 3.94+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+1.324.90.9 4.84.80.5 (1.250.1254.8100.1 56.59956.5 7.0910.804.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4 12.50.42.58 0.873.16+4.64 9.5101 0.68 （5.2 -3.5） 1.25 40.5 0.81 0.18 4.8 （15 2.46.81+6.8199 0.2518540 4.40.83.4(9.37+9.37+9.37+9.37) 25 2.376.3+2.373.7 2.51.250.32 3.810.1 2.5(3.80.04) 7.69101 3.810.1 0.2539+0.25 0.12572 460.33+540.(85.27)