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1、五年級(jí)小數(shù)乘除法練習(xí)題70道52.44 1.6666.1 9.4320.002 5.66.5 4.882.9 5.614.38.92.4 5.555 9.770.02 1.3845.1 8.7883 2.6610.0590.2 4.2681.7 575.7 9.462.85 17.86.4 1.54.92.50.8 5.5555.2 2.223.33 7.65885 36.020.3 56.788除法： 85.4416 42.847 101.79 67.515 230.46 21.24360.73623 43.512 35.217 39.624 6.210.03 2101.451.30.27

2、91.23.8 0.7560.18 0.660.3 11.971.5 69.62.938.40.8 150.06（循環(huán)小數(shù)的用簡(jiǎn)便方法,除不盡保留2位小數(shù)）：8.20.12 0.80.9 76.45.4 4.73 1.251.2 324214.362.7 8.336.2 1.70.03 2.410.7用豎式計(jì)算0.3961.2= 0.7560.36= 15.613= 0.1815= 0.02514= 3.0636=0.040.12 3.842.6 5.763 （保留一位小數(shù)） 7.1522 90.753.3 3.680.2516.90.13 1.553.9 3.70.016 13.760.8=

3、 5.20.6 8.41.36.40.5 4.480.4 5.255 35.44.2 0.0420.54 0.760.320.250.046 2.523.4 1.0825 0.120.50.16 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(yàn)算） 3.259.04= （用除法驗(yàn)算）3、脫式計(jì)算（能簡(jiǎn)算的要簡(jiǎn)算）2.57.14 16.129916.12 5.20.90.9 7.2899+7.28 4.3500.2 642.640.52615.715.724 (2.275 0.625)0.28

4、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+1.58 324.90.9 4.84.80.5 (1.250.125)8 4.8100.1 56.59956.5 7.0910.80.87.09 4.85 + 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 0.184.8 （15 2.4） 6.81+6.8199 0.2518540 4.40.83.40.8 (9.37+937+937+937) 25 2.376.3+2.373.7 2.51.250.32 3.810.1 2.5(3.80.04) 7.69101 3.810.10.2539+0.25 0.12572 460.33+540.33 (85.27) 1.25 6.81+6.8199 0.25185406.80.750.5 3.750.1252.75 1.53+23.47.2 9.599 13.50.98 12.58.83 / 3