小数乘除法计算题及其答案.doc

许家庄小学小数乘除法专项练习乘法5.62.9= 3.771.8= 0.0296=5.220.3= 9.990.02= 4.670.9=52.44= 1.6666.1= 9.4320.002=5.66.5= 4.882.9= 5.614.3=8.92.4= 5.555= 9.770.02=1.3845.1= 8.7883= 2.661=0.0590.2= 4.2681.7= 575.7=9.462.85= 17.86.4= 1.54.9=2.50.88= 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= 21.2436=0.73623= 43.512= 35.217=39.624= 6.210.03= 2101.4=51.30.27= 91.23.8= 0.7560.18=0.660.3= 11.971.5= 69.62.9=38.40.8= 150.06= （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= 1.251.2= 3242=14.362.7= 8.336.2 1.70.03= 2.410.7= 0.3961.2= 0.7560.36= 计算0.1815= 0.02514= 3.0636= 15.613=0.040.12 3.842.6 （保留一位小数）5.7637.1522= 90.753.3= 3.680.25=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= 0.760.32=0.250.046= 2.523.4= 1.0825=0.120.50.16 4.80.250.1251.4 （保留两位小数） 2.50.7 （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）3、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 3.94+34.30.2 1.2(9.62.4)4.88.91.14.7 2.75.43.9 3.69.85-5.468.053.4+7.6 6.584.50.9 2.80.5+1.58324.90.9 4.84.80.5 (1.250.125)84.8100.1 56.59956.5 7.0910.80.87.094.85 + 0.35 1.4 8.7 17.4 - 8.7 7.412.50.42.58 0.873.16+4.64 9.5101 0.68 （5.2 -3.5） 1.25 40.5 0.81 0.18 4.8 （15 2.4） 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 0.2539+0.25 0.12572 460.33+540.33 (85.27) 1.25 6.81