北师大版四年级数学下册第三单元小数乘法专项练习题110.docx
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北师大版四年级数学下册第三单元小数乘法专项练习题110
一、口算。
0.9×4＝7×0.7＝0.003×100＝0.869÷10＝
0.109×100＝60×0.05＝0.03×8＝0.17×90＝
0.2×3＝7×0.8＝0.05×1000＝6.58÷1000＝
44.7×1000＝0.01×0.3＝0.02×9＝0.03×0.6＝
二、列竖式计算。
0.67×0.070.26×2.60.81×6.95.3×5.63
0.88×0.027.9×0.692.5×9.22.5×6.49
0.59×0.50.16×0.91.6×0.870.46×32
0.17×0.031.3×7.60.4×0.4328.8×0.54
一、口算。
0.6×7＝9×0.3＝0.4×100＝2.12÷10＝
7.17×10＝0.02×0.04＝0.005×0.6＝0.14×90＝
0.1×7＝6×0.2＝0.8×1000＝26.7÷1000＝
0.104×100＝30×0.8＝0.004×0.6＝1.9×900＝
二、列竖式计算。
0.46×0.90.43×44.1×0.217.1×17.4
0.39×0.056.7×6.93.8×0.125.2×11.7
0.25×0.082.9×1.90.61×0.50.68×35.4
5.1×0.60.81×3.10.41×2.591.5×7.8
一、口算。
0.8×4＝6×0.6＝0.003×100＝0.089÷1000＝
9.36×10＝0.9×0.2＝0.007×0.04＝0.12×40＝
0.6×6＝7×0.4＝0.5×10＝0.416÷100＝
0.28×10＝0.6×0.02＝0.008×0.8＝0.06×40＝
二、列竖式计算。
3.5×0.89.9×5.23×0.794.1×75.2
0.74×0.086.4×0.990.69×0.490.19×52.1
0.33×0.20.47×0.179.6×4.70.52×19.8
7.7×0.060.54×1.20.87×8.687.2×0.22
一、口算。
0.4×9＝6×0.3＝0.8×10＝97.3÷1000＝
6.37×1000＝6×0.06＝0.008×0.3＝1.2×500＝
0.9×7＝6×0.6＝0.009×100＝0.387÷1000＝
39.3×1000＝0.06×0.5＝0.009×3＝0.3×2＝
二、列竖式计算。
5.2×0.78.5×5.80.22×0.640.81×4.77
0.22×0.70.53×3.95.2×0.749.4×43.4
3300×0.070.69×0.785.4×0.680.7×4.03
9.5×0.98.8×0.383.1×0.6520.3×0.14
一、口算。
0.5×9＝3×0.7＝0.006×10＝90÷1000＝
0.479×100＝0.8×0.8＝0.07×200＝0.07×0.9＝
0.3×3＝6×0.7＝0.07×1000＝0.327÷100＝
0.722×10＝10×0.9＝0.8×400＝0.19×0.05＝
二、列竖式计算。
2.1×0.020.25×0.359×0.880.79×2.21
9.8×0.040.66×3.90.11×0.995.3×95.7
8.9×0.055.1×5.60.71×0.740.4×43.7
0.24×0.30.22×7.46.6×0.8790.6×4.5
一、口算。
0.7×3＝7×0.2＝0.004×100＝0.822÷1000＝
76.6×1000＝30×0.06＝0.5×800＝1×60＝
0.2×7＝3×0.4＝0.007×100＝67.1÷10＝
0.091×1000＝3×0.4＝0.006×2＝0.16×20＝
二、列竖式计算。
7.6×0.64.8×0.110.67×0.270.9×8.84
6.1×0.97.7×0.730.74×5.90.29×91.3
0.87×0.024.1×10.72×3.60.65×13.9
5.7×0.40.4×0.598.5×0.899.87×6.2
一、口算。
0.6×7＝2×0.7＝0.09×100＝6.45÷1000＝
36×100＝40×0.04＝0.005×200＝1.3×0.04＝
0.7×7＝9×0.5＝0.003×1000＝0.928÷100＝
0.491×1000＝1×0.4＝0.004×0.05＝1.2×20＝
二、列竖式计算。
3.1×0.38.8×0.820.43×8.14.9×5.19
0.78×0.059×7.13.5×8.30.85×37.3
33×0.32.7×9.30.21×0.232.1×9.8
0.34×0.50.79×7.61.5×0.5846×0.67
一、口算。
0.6×6＝8×0.5＝0.8×1000＝14.7÷1000＝
0.299×1000＝3×0.05＝0.06×200＝0.05×0.05＝
0.3×5＝9×0.3＝0.03×100＝58.5÷10＝
21.5×10＝0.6×0.08＝0.08×9＝0.7×0.05＝
二、列竖式计算。
0.73×0.50.99×7.20.43×0.380.12×2.38
3.9×0.052.6×5.60.74×3.75.7×9.29
0.37×0.90.67×6.96.9×0.832.7×54.1
8.3×0.080.73×0.528×0.731.2×5.2
一、口算。
0.2×3＝3×0.4＝0.004×1000＝54.3÷100＝
0.472×1000＝9×0.9＝0.009×70＝1.8×2＝
0.3×4＝7×0.3＝0.2×100＝5.33÷100＝
27.6×1000＝0.8×0.03＝0.1×0.09＝0.1×800＝
二、列竖式计算。
5.2×0.42.9×9.88×5.30.58×48.6
9.5×0.060.93×9.50.2×4.80.1×86.5
0.42×0.86.7×3.28.8×0.690.69×3.84
0.96×0.035.3×60.39×189.1×0.96
一、口算。
0.4×5＝4×0.7＝0.8×1000＝0.094÷10＝
79.3×100＝0.4×0.09＝0.3×800＝0.11×90＝
0.3×3＝2×0.5＝0.05×10＝1.33÷1000＝
3.33×1000＝0.01×0.05＝0.4×900＝0.13×800＝
二、列竖式计算。
7.3×0.040.64×2.69.1×0.939.3×3.06
7.6×0.049.4×0.329.5×9.80.97×41.7
330×0.023.4×0.173.2×0.881.3×4.79
2.5×0.037.8×0.955.8×0.189.45×0.42
一、口算。
0.1×6＝4×0.7＝0.04×100＝39.4÷1000＝
9.64×100＝3×0.8＝0.3×90＝0.03×0.07＝
0.2×8＝3×0.3＝0.03×1000＝0.294÷1000＝
0.694×10＝0.02×0.09＝0.2×4＝0.16×7＝
二、列竖式计算。
1.2×0.50.2×0.820.14×0.122.2×32.9
0.29×0.030.59×0.472×0.390.67×70.5
0.82×0.040.23×4.90.98×0.531.6×5.81
0.18×0.021.5×0.950.18×3.97.07×7.8
一、口算。
0.5×7＝6×0.9＝0.7×10＝0.239÷100＝
5.4×100＝10×0.03＝0.06×0.09＝0.16×0.8＝
0.3×6＝6×0.4＝0.004×1000＝31.8÷1000＝
6.82×100＝0.9×0.4＝0.05×8＝1.3×0.3＝
二、列竖式计算。
8.1×0.29.5×0.27.9×2.80.63×89.4
4.5×0.60.48×0.10.42×24.7×7.58
220×0.079.1×8.70.2×0.130.34×51.7
6.5×0.090.6×0.45.5×0.5274.2×0.75
一、口算。
0.7×2＝5×0.7＝0.8×100＝30.6÷1000＝
0.963×1000＝20×0.04＝0.07×400＝1.4×800＝
0.6×7＝7×0.7＝0.8×100＝0.75÷1000＝
0.876×10＝0.08×0.8＝0.06×0.03＝0.17×30＝
二、列竖式计算。
0.21×0.020.13×9.20.3×0.68.6×3.24
3.7×0.050.38×0.627.1×0.84.2×7.96
410×0.69.4×0.699.8×0.750.7×1.19
7.4×0.62.1×4.90.72×0.7351.2×1.6
一、口算。
0.4×4＝7×0.5＝0.002×100＝9.86÷100＝
77×10＝0.4×0.6＝0.1×0.06＝0.8×5＝
0.7×6＝4×0.5＝0.03×10＝5.56÷100＝
43.8×10＝40×0.04＝0.07×0.09＝0.1×700＝
二、列竖式计算。
0.93×0.060.36×3.27.9×3.80.11×7.88
3.3×0.48.3×7.50.81×0.442×6.99
750×0.083.4×8.50.2×4.40.35×27.4
0.75×0.020.97×0.694.4×0.5192.4×6.3
一、口算。
0.7×4＝7×0.9＝0.2×100＝38.5÷1000＝
0.816×100＝0.08×0.09＝0.005×5＝0.1×0.06＝
0.2×7＝5×0.3＝0.007×10＝4.99÷100＝
32.8×10＝0.9×0.5＝0.03×0.08＝0.12×0.4＝
二、列竖式计算。
0.95×0.030.21×7.32.9×5.32.2×4.26
0.59×0.066.6×12.8×0.865.8×1.8
8.4×0.39×0.434.5×0.764.4×14.5
0.73×0.21.4×1.90.43×0.8843.4×0.47
一、口算。
0.6×8＝3×0.9＝0.05×10＝1.75÷10＝
3.61×1000＝0.4×0.5＝0.001×0.8＝2×0.06＝
0.3×4＝5×0.3＝0.003×10＝31.3÷10＝
0.86×10＝50×0.02＝0.5×0.07＝0.08×3＝
二、列竖式计算。
0.49×0.058.6×0.920.32×1.39.4×90.3
6.6×0.24.7×8.80.87×0.768.7×3.94
830×0.047.4×9.30.2×0.922.3×3.1
0.69×0.068.8×27.4×0.9332.5×1.9
一、口算。
0.8×2＝6×0.9＝0.07×10＝7.12÷1000＝
7.6×100＝8×0.08＝0.001×3＝0.8×90＝
0.6×4＝4×0.2＝0.7×10＝8.4÷100＝
0.499×10＝60×0.2＝0.8×30＝0.5×0.3＝
二、列竖式计算。
9.5×0.040.78×0.721.6×0.570.36×10.9
8.6×0.060.87×0.741.2×0.414.8×7.34
9400×0.041.6×0.279.1×0.440.16×54.3
8.6×0.24.7×0.530.87×697.8×0.99
一、口算。
0.1×9＝3×0.4＝0.5×100＝28.2÷10＝
0.774×100＝20×0.02＝0.002×7＝1.8×5＝
0.6×6＝7×0.8＝0.05×100＝91.6÷100＝
76.3×100＝0.1×0.7＝0.002×5＝0.18×0.5＝
二、列竖式计算。
0.19×0.032.6×4.80.26×0.90.76×54.3
3.8×0.60.81×1.70.8×0.852.9×1.51
1.3×0.54×0.768.7×0.390.31×26
0.62×0.095.2×0.655×0.182.49×2.9
一、口算。
0.2×6＝7×0.4＝0.07×100＝0.5÷100＝
0.671×10＝0.8×0.02＝0.6×0.05＝0.04×0.08＝
0.1×2＝9×0.3＝0.6×100＝62.4÷10＝
0.74×100＝0.8×0.9＝0.03×0.04＝0.9×0.06＝
二、列竖式计算。
0.89×0.30.94×4.30.62×6.26.1×2.27
8.8×0.085.8×0.630.54×9.20.4×74.4
280×0.057.2×0.120.53×5.29.9×66.7
0.24×0.40.12×0.350.71×0.545.75×0.91
一、口算。
0.5×6＝2×0.5＝0.5×100＝85.4÷100＝
15.5×1000＝5×0.8＝0.004×0.06＝0.13×3＝
0.9×7＝6×0.7＝0.07×10＝18.7÷1000＝
6.77×100＝10×0.8＝0.02×6＝1.3×40＝
二、列竖式计算。
4.5×0.60.62×0.297.9×46.3×79.8
0.69×0.050.7×0.350.14×0.365.4×40
79×0.074.8×0.680.18×3.10.92×50.1
2.8×0.28.7×0.130.38×9.82.31×1.7
一、口算。
0.3×5＝5×0.2＝0.007×10＝10.1÷1000＝
52.7×1000＝0.6×0.4＝0.004×80＝0.1×900＝
0.3×4＝8×0.3＝0.001×100＝0.817÷100＝
6.78×100＝0.08×0.03＝0.5×300＝1.8×3＝
二、列竖式计算。
1.7×0.028.5×0.110.98×0.924.2×98.2
8.9×0.51.5×5.50.69×0.676.1×67.1
0.71×0.086.9×0.615.7×9.90.61×7.22
2.5×0.092.1×5.85.3×0.582.94×8.8
一、口算。
0.1×7＝9×0.6＝0.08×10＝3.96÷1000＝
0.971×100＝60×0.4＝0.1×0.8＝0.12×700＝
0.7×2＝9×0.6＝0.005×10＝96.3÷100＝
0.445×10＝0.04×0.3＝0.6×5＝0.17×300＝
二、列竖式计算。
0.19×0.80.91×0.280.77×7.10.43×1.72
0.52×0.35.3×0.167.5×4.99.9×31.5
45×0.70.33×6.90.14×0.890.97×6.57
5.5×0.94.4×6.45.4×0.6214.4×7
一、口算。
0.9×5＝4×0.2＝0.4×1000＝0.007÷10＝
3.51×1000＝30×0.07＝0.001×9＝0.15×0.6＝
0.2×8＝6×0.7＝0.9×1000＝6.2÷10＝
1.36×100＝0.02×0.07＝0.009×5＝0.8×0.2＝
二、列竖式计算。
8.9×0.62.5×0.788.3×0.140.75×88.7
0.84×0.46.1×7.30.52×0.959.4×8.29
0.51×0.61.1×0.760.67×0.330.78×82
0.45×0.092.4×1.64.5×2.38.24×4.8
一、口算。
0.7×4＝7×0.9＝0.6×10＝76.6÷10＝
0.682×1000＝1×0.03＝0.5×900＝0.6×2＝
0.3×4＝2×0.9＝0.8×10＝19.7÷10＝
0.216×1000＝20×0.02＝0.06×0.08＝0.08×30＝
二、列竖式计算。
6.3×0.046.5×0.3
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