小數(shù)乘除法計算題及其答案

1、乘法：5.62.9=16.243.771.8=6.7860.0296=1.925.220.3=1.5669.990.02=0.19984.670.9=4.20352.44=12.21.6666.1=10.16269.4320.002=0.0188645.66.5=36.44.882.9=14.1525.614.3=24.1238.92.4=21.365.555=302.59.770.02=0.19541.3845.1=7.05848.7

2、883=728.742.661=158.60.0590.2=0.01184.2681.7=7.2556575.7=324.99.462.85=26.96117.86.4=113.921.54.9=7.352.50.88=2.25.5555.2=28.8862.223.33=7.39267.65885=650.9336.020.3=10.80656.788=454.24除法：85.4416=5.3442.847=6.12101.79=11

3、.367.515=4.5230.46=38.421.2436=0.590.73623=0.03243.512=3.62535.217=5.0339.624=1.656.210.03=2072101.4=15051.30.27=19091.23.8=240.7560.18=4.20.660.3=2.211.971.5=7.9869.62.9=2438.40.8=48150.06=250（循環(huán)小數(shù)的用簡便方法，除不盡保留2位小數(shù)）：8.20

4、.12=68.33…0.80.9=0.88…76.45.4=14.148148…4.73=1.566…1.251.2=1.04166…3242=0.761904761904…14.362.7=5.3185185…8.336.2≈1.341.70.03=56.66…2.410.7=3.44285714285714…2615.72615.7＋15.72415.724(2.275(2.275＋0.625)0.280.625)0.28=（262

5、4）15.7=2.90.28=5015.7=0.812=78.53.9434.30.23.9434.30.21.2(9.62.4)4.81.2(9.62.4)4.8=3.946.86=1.244.8=10.8=4.84.8=18.91.14.78.91.14.72.75.43.92.75.43.93.69.855.463.69.855.46=9.794.7=14.583.9=35.465.46=46.013=56.862=308.053

6、.47.68.053.47.66.584.50.96.584.50.92.80.51.582.80.51.58=27.377.6=29.610.9=1.41.58=34.97=26.649=2.983232＋4.94.9－0.90.94.84.8－4.80.54.80.5(1.25(1.25－0.125)80.125)8=36.90.9=4.82.4=1.2580.1258=36=2.4=101=94.8100.14.8100.156.