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1、小数乘除法练习题及简便计算一、计算题 1、直接写出得数。 0.452.5 0.81.25 0.33.6 0.30.3 100.07 0.31.4 0.057 0.920.4 0.20.26 0.144 0.020.1 1.20.30.20.4 8.21. 10035.22 2.34.50.4 2.45 0.224 3.250 0.90.52 3.991 03.52= 12.548 810 = 10-1.8-7.2= 0.43+3.57= 2.5412=0.90.8= 1.05100= 10.5= 0.963= 1.470.7= 5.46= 0.16.510= 0.60.8 = 0.56100=
2、 30.9= 3.78100= 2.50.4= 40.8= 3.60.4= 3.215100= 0.810= 4.08100= 1.10.2 = 12.58= 500.04= 800.3 = 1.19= 0.165 1.782.2 = 9.60.6 = 1.20.5-0.4 = 0.70.01 = 2.50.4 = 123.9= 1.2581.25 = 6.60.66 = 5.370+4.63 = 3.92.03 4.23.5 1.6+2.40.3 = 2.140.9 2745673= 0.30.3= 7.22.8 0.90.01 120.3= 2.870.7 134 0.960.3 1.50
3、.4 70.25 2.50.70.8= 82.5 161.6 5.61.01= 8 0.360.64 64.3216 4.20.1 72.80.8 8.44.2 13.89.9 2.42.5 0.050.8 2.560.37 1.250.80.5 122.5 1.233 3.21.6 3.53.53 19.62 8.82.2= 0.754 4 0.50.8=8.40.2= 1.60.2 7.20.3= 2.80.3 0.90.15= 1.80.4= 5.50.55= 0.08100= 2.20.11= 5.464.54= 12.50.8= 0.350.3= 1.45= 2.84= 19.64=
4、 22.54= 2、用竖式计算 0.3961.2= 0.7560.36= 15.613= 0.1815= 0.02514= 3.0636= 0.040.12 7.1522 16.90.13 13.760.8= 6.40.5 3.842.6 3.3 1.553.9 5.20.6 4.480.4 5.763 0.25 0.016 8.41.3 5.255 90.75 3.68 3.7 35.44.2 0.0420.54 0.760.32 0.250.046 2.523.4 0.120.50.16 4.80.25 、 2.50.7= 10.7512.5= 1.0825 0.1251.4 10.13.
5、3= 3.259.04= 3、脱式计算 2.57.14 16.129916.12 5.20.90.9 7.2899+7.28 2615.715.724 3.94+34.30.2 8.91.14.7 8.053.4+7.6 4.3500.2 642.640.5 (2.275 0.625)0.28 2.75.43.9 1.2(9.62.4)4.8 6.584.50.9 3.69.85-5.46 2.80.5+1.58 4.84.80.5 324.90.9 (1.250.125)8 56.59956.5 4.8100.1 7.0910.80.87.09 4.85 + 0.35 1.4 12.50.4
6、2.58 0.873.16+4.64 0.68 1.25 40.5 0.81 0.18 4.8 6.81+6.8199 0.2518540 9.5101 17.4 - 8.7 7.4 2.13.0.8257 4.40.83.40.8 8.7 (9.37+9.37+9.37+9.37) 25 42.1.254.21.75 2.376.3+2.373.7 2.51.250.32 3.810.1 2.5(3.80.04) 0.2539+0.25 (85.27) 1.25 6.80.750.5 9.599 7.69101 0.12572 6.81+6.8199 3.750.1252.75 13.50.98 3.810.1 460.33+540.33 0.2518540 7.2 12.58.8 1.53+23.4
