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1、五年级小数乘除法计算题练习一、计算题（30 分）1、直接写出得数。0.452.51.1250.81.2510.33.61.080.30.30.09 100.070.70.31.40.420.0570.350.920.40.368 0.20.260.0520.1440.560.020.10.0021.20.30.360.20.40.088.21.81010035.2264.782.349.22.50.412.4512 0.2240.883.25000.90.520.383.9913.9903.52012.58100810=0.810-1.8-7.2=10.43+3.57=42.5412=1200
2、.90.8=0.727.5x-3x=4.5xa+3a+7a=11a1.05100=10510.5=20.963=0.321.470.7=2.15.46=0.90.16510=1.650.56100=563.78100=37840.8=53.215100=321.50.810=84.08100=4081.10.2=0.220.60.8=0.4830.9=2.72.50.4=13.60.4=1.4412.58=100500.04=2800.3=2.41.19=9.90.165=0.81.782.2=3.989.60.6=161.20.5-0.4=0.20.70.01=702.50.4=1123.9
3、=8.11.2581.25=86.60.66=105.370+4.63=4.633.92.035.934.23.51.21.6+2.40.3=2.322.140.91.242745673=556 0.30.3=0.097.22.8100.90.0190120.3=402.870.74.11343.250.960.33.21.50.40.670.25282.50.70.8=1.482.55.5161.6105.61.01=5.6568（2.50.25）22 0.360.64164.32164.024.20.14272.80.8918.44.2213.89.923.72.42.560.050.80
4、.04 2.560.372.19 1.250.80.50.5122.5301.2333.693.21.623.53.531419.629.88.82.2=40.7543（1.50.25）470.50.8=0.48.40.2=1.681.60.20.327.20.3=2.162.80.30.840.90.15=61.80.4=0.725.50.55=100.08100=82.20.11=205.464.54=1012.50.8=100.350.3=0.1051.45=72.84=11.219.64=4.922.54=902、用竖式计算0.3961.2=0.330.7560.36=2.115.61
5、3=202.80.1815=2.70.02514=0.353.0636=110.160.040.120.00483.842.610.05.76317.28（保留一位小数）7.1522=157.390.753.3=27.53.680.25=0.9216.90.13=1301.553.90.403.70.016=0.0592(保留两位小数)13.760.8=11.0085.20.6=3.128.41.3=10.926.40.5=3.24.480.4=1.7925.255=26.2535.44.2=148.680.0420.54=0.022680.760.32=0.24320.250.046=0.0
6、1152.523.4=8.5681.0825=270.120.50.160.00964.80.251.20.1251.40.18（保留两位小数）2.50.7=3.571（保留三位小数）10.13.3=3.06(06 上面两个点)（商用循环小数）10.7512.5=0.86（用乘法验算）3.259.04=29.38（用除法验算）3、脱式计算（能简算的要简算）2.57.1416.129916.125.20.90.9=71=1612=5.587.2899+7.284.3500.2642.640.5=72.8=43=62.682615.715.724(2.275 0.625)0.28=785=0.81
7、23.94+34.30.21.2(9.62.4)4.8=10.8=18.91.14.72.75.43.93.69.85-5.46=46.013=56.862=308.053.4+7.66.584.50.92.80.5+1.58=34.97=26.649=2.98324.90.94.84.80.5(1.250.125)8=36=2.4=94.8100.156.59956.57.0910.80.87.09=480.48=5650=70.94.85+0.35 1.48.7 17.4-8.7 7.49.5101=5.1=87=959.512.50.42.580.68(5.2-3.5)1.25=100=
8、0.540.5 0.810.184.8（152.4）2.1308257=9=30=06.81+6.81990.25185404.40.83.40.8=681=1850=0.8(9.37+9.37+9.37+9.37)2.52.376.3+2.373.73.810.1=93.7=23.7=38.382.51.250.323.810.12.5(3.80.04)=1=38.38=0.380.2539+0.250.12572460.33+540.33=10=9=33(85.27)1.256.81+6.81990.2518540=52.7=68.1=18506.80.750.53.750.125 2.751.53+23.47.2=10.29.599=940.5=27.25=4.7813.50.9812.58.8=13.23=110