北师大版四年级数学下册第三单元小数乘法专项练习题10.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10
一、口算。
0.9×5＝6×0.6＝0.001×100＝24.2÷10＝
6.78×10＝0.8×0.8＝0.06×2＝0.05×0.3＝
0.8×6＝6×0.6＝0.3×100＝0.861÷100＝
6.83×1000＝20×0.04＝0.005×7＝1.6×9＝
二、列竖式计算。
1.7×0.020.36×7.60.36×1.41.9×48.3
0.92×0.081.6×0.334.8×0.178.2×2.79
840×0.60.4×3.10.71×5.66.6×90
0.95×0.035.5×5.43.9×5.87.59×0.53
一、口算。
0.8×6＝4×0.7＝0.5×10＝94.1÷100＝
0.403×1000＝0.02×0.5＝0.8×0.02＝0.18×0.08＝
0.5×8＝4×0.9＝0.06×10＝2.11÷100＝
1.05×10＝0.4×0.05＝0.7×80＝0.11×40＝
二、列竖式计算。
0.86×0.93.1×0.112.2×4.22.1×3.28
8.7×0.079.6×90.19×1.24.4×4.43
0.96×0.80.17×4.43.7×0.865.6×6.56
0.63×0.029×4.70.22×4.261.7×0.21
一、口算。
0.2×9＝5×0.2＝0.2×100＝0.293÷10＝
0.673×1000＝9×0.9＝0.007×0.02＝1.6×500＝
0.7×9＝6×0.9＝0.4×10＝9.66÷100＝
0.73×100＝0.04×0.7＝0.03×0.9＝0.04×6＝
二、列竖式计算。
0.17×0.51.5×1.80.41×0.610.17×6.09
7.6×0.098.1×7.10.81×0.547.1×37.8
7300×0.88.1×4.60.43×5.10.82×55.4
0.18×0.90.36×8.21.2×0.233.71×0.64
一、口算。
0.4×2＝3×0.4＝0.001×100＝67.3÷100＝
0.977×10＝0.8×0.6＝0.001×7＝0.1×8＝
0.7×2＝8×0.2＝0.006×100＝52÷100＝
5.09×100＝0.03×0.03＝0.2×8＝1.8×30＝
二、列竖式计算。
0.19×0.80.77×4.90.32×0.453.2×8.99
0.57×0.090.77×0.980.63×6.13.7×8.62
3900×0.60.94×7.11.6×1.50.42×6.88
0.58×0.80.18×80.57×8.63.05×0.89
一、口算。
0.8×8＝2×0.4＝0.3×1000＝0.484÷100＝
87.1×1000＝5×0.5＝0.7×300＝0.3×0.05＝
0.5×9＝5×0.9＝0.06×10＝56.1÷1000＝
0.542×10＝0.2×0.6＝0.03×600＝0.06×80＝
二、列竖式计算。
0.58×0.090.41×0.70.9×0.70.46×23.2
0.19×0.85.6×0.710.24×0.610.9×9.62
540×0.91.7×1.90.19×0.678.7×5.76
0.44×0.51.7×8.40.25×0.22.15×0.28
一、口算。
0.6×3＝7×0.3＝0.003×1000＝3.88÷1000＝
1.98×1000＝10×0.04＝0.2×800＝1.1×0.06＝
0.9×6＝3×0.4＝0.7×10＝0.24÷100＝
0.058×1000＝90×0.03＝0.1×8＝0.12×0.04＝
二、列竖式计算。
7.1×0.85.6×4.50.47×0.320.57×1.44
0.47×0.90.62×0.477.9×0.820.36×28.2
1400×0.059.8×0.740.61×8.40.63×61.2
7.8×0.024×1.66.5×4.14.56×0.76
一、口算。
0.9×8＝9×0.5＝0.4×10＝0.626÷1000＝
0.215×1000＝40×0.09＝0.03×0.03＝0.8×7＝
0.5×4＝3×0.8＝0.005×100＝8.41÷10＝
3.21×10＝10×0.9＝0.06×200＝0.08×800＝
二、列竖式计算。
0.22×0.026.5×0.939.8×1.14.3×20.7
2.2×0.098.5×7.45.2×6.42.4×85.8
2.2×0.070.38×2.37.1×0.450.81×70.7
0.67×0.93.6×0.393.1×9.64.08×6.3
一、口算。
0.2×7＝2×0.2＝0.4×100＝45.7÷1000＝
0.043×10＝50×0.5＝0.3×8＝0.02×2＝
0.2×4＝6×0.5＝0.01×100＝0.465÷1000＝
69.7×1000＝1×0.05＝0.007×0.9＝0.2×0.07＝
二、列竖式计算。
7.4×0.090.82×2.56.4×1.90.97×9.88
0.76×0.020.51×2.20.16×0.430.69×7.32
5700×0.30.25×0.450.41×6.94.2×26.9
0.99×0.70.2×1.58.5×8.67.5×4.6
一、口算。
0.3×2＝6×0.2＝0.06×100＝7.53÷1000＝
0.329×10＝50×0.07＝0.5×0.6＝0.9×500＝
0.3×2＝6×0.9＝0.1×10＝9.83÷1000＝
90×100＝0.08×0.07＝0.3×20＝0.16×0.9＝
二、列竖式计算。
0.56×0.034.7×0.370.97×4.50.96×8.02
0.92×0.29.2×0.730.36×3.89.6×5.78
440×0.060.35×3.70.83×0.392.1×90.8
0.68×0.30.51×7.57.3×0.319.34×0.69
一、口算。
0.2×4＝6×0.4＝0.04×1000＝68.4÷100＝
3.63×10＝0.03×0.3＝0.003×500＝0.18×0.8＝
0.8×6＝9×0.9＝0.2×10＝68.2÷1000＝
6.5×1000＝8×0.8＝0.004×0.6＝0.9×300＝
二、列竖式计算。
1.6×0.056.3×3.86.7×0.970.63×6.82
6.2×0.080.21×0.550.78×0.270.2×46.2
79×0.078.1×1.59.8×3.78.7×3.46
9.1×0.34.5×0.133.7×0.8668.2×7.2
一、口算。
0.7×2＝7×0.5＝0.1×100＝3.46÷100＝
0.99×100＝70×0.07＝0.006×0.9＝0.4×0.07＝
0.6×5＝9×0.5＝0.8×1000＝47.7÷100＝
7.15×1000＝70×0.2＝0.02×40＝1.7×0.9＝
二、列竖式计算。
0.82×0.080.53×0.821.5×0.817×43.8
0.35×0.91.9×0.730.84×0.213×90.1
3700×0.39.4×0.80.55×0.880.94×17.3
0.99×0.056.8×9.39.5×0.679.53×0.42
一、口算。
0.5×3＝5×0.6＝0.007×100＝0.039÷100＝
0.995×1000＝0.7×0.09＝0.6×0.02＝1.7×600＝
0.2×6＝9×0.4＝0.002×100＝44.3÷1000＝
0.751×1000＝0.09×0.08＝0.09×800＝1.8×0.3＝
二、列竖式计算。
6.7×0.040.5×61.2×6.50.34×5.64
0.73×0.50.34×7.14.1×7.90.69×87.1
98×0.064.9×0.240.55×0.850.82×7.82
7.5×0.94.1×0.170.67×0.2652.3×7.2
一、口算。
0.7×7＝6×0.2＝0.008×1000＝22.3÷1000＝
0.887×100＝30×0.6＝0.09×9＝0.1×900＝
0.2×6＝5×0.9＝0.01×10＝0.849÷1000＝
49.9×1000＝50×0.6＝0.002×40＝0.15×400＝
二、列竖式计算。
0.18×0.90.82×0.926.3×7.27.1×65.6
0.28×0.097.6×0.310.68×0.563.7×3.89
780×0.025.1×0.114.8×3.70.25×2.89
5.8×0.070.58×1.70.1×0.5227.3×3.9
一、口算。
0.6×2＝4×0.3＝0.05×1000＝0.425÷10＝
9.3×10＝0.08×0.4＝0.5×30＝0.2×90＝
0.5×5＝5×0.3＝0.8×100＝0.978÷10＝
0.995×100＝1×0.06＝0.06×0.9＝0.1×900＝
二、列竖式计算。
0.21×0.040.47×0.660.36×0.457×48.2
8.8×0.080.94×0.649×0.559.6×3.11
52×0.030.23×3.50.75×0.280.82×69.4
6.4×0.020.32×4.94.7×7.832.3×6.7
一、口算。
0.5×6＝5×0.4＝0.9×10＝1.38÷10＝
8.5×100＝10×0.9＝0.05×0.9＝1.4×20＝
0.2×8＝5×0.9＝0.03×100＝40.8÷1000＝
40.9×100＝70×0.06＝0.4×0.6＝0.3×0.8＝
二、列竖式计算。
7.9×0.81.1×0.350.81×0.621.6×5.6
0.94×0.096×0.370.24×0.940.69×81.4
0.88×0.34.5×7.55.8×8.20.3×3.88
3.5×0.62.3×0.220.12×18.45×0.78
一、口算。
0.7×7＝5×0.4＝0.2×100＝0.127÷10＝
9.61×1000＝0.7×0.4＝0.8×6＝1×40＝
0.1×9＝2×0.3＝0.004×10＝15.2÷1000＝
8.11×10＝6×0.02＝0.4×4＝0.1×30＝
二、列竖式计算。
8.5×0.43.6×7.30.93×2.65×2.09
7.7×0.020.18×5.80.92×0.160.78×11.4
48×0.42.3×0.950.29×9.28.8×92.3
0.39×0.43.7×7.70.73×8.619.4×1
一、口算。
0.7×8＝7×0.3＝0.006×100＝5.21÷100＝
57.4×10＝10×0.05＝0.6×0.09＝0.5×9＝
0.8×2＝9×0.8＝0.09×1000＝4.33÷1000＝
99.9×1000＝0.04×0.04＝0.004×0.07＝0.09×900＝
二、列竖式计算。
0.13×0.20.91×2.59.2×0.512.1×7.03
0.18×0.090.25×0.70.42×0.221×9.19
790×0.70.32×0.520.5×8.86.4×13.8
0.57×0.80.12×41.7×1.348.2×0.99
一、口算。
0.5×3＝5×0.3＝0.05×1000＝2.57÷1000＝
45.4×100＝0.2×0.3＝0.003×0.05＝0.16×200＝
0.4×3＝8×0.5＝0.07×10＝39.3÷100＝
13.3×100＝0.1×0.8＝0.001×0.2＝0.15×0.09＝
二、列竖式计算。
0.36×0.30.51×0.680.75×0.395.6×1.07
1.4×0.031.7×0.910.97×10.81×38.6
0.96×0.40.77×0.820.71×4.70.35×4.33
8.9×0.080.32×0.691.8×0.1394×3.3
一、口算。
0.7×4＝4×0.3＝0.001×1000＝76.7÷10＝
9.47×10＝70×0.5＝0.1×90＝0.04×7＝
0.5×2＝8×0.3＝0.008×100＝31.9÷100＝
0.6×1000＝0.8×0.04＝0.009×40＝0.03×80＝
二、列竖式计算。
0.62×0.090.16×0.450.85×0.920.13×21.1
0.79×0.023.1×3.70.17×0.250.74×79.9
960×0.50.92×0.440.95×0.40.54×6.29
4.6×0.089.6×2.60.91×4.946.6×0.24
一、口算。
0.5×7＝2×0.8＝0.4×10＝48.4÷100＝
55.9×1000＝0.9×0.9＝0.002×3＝0.06×0.09＝
0.1×6＝6×0.6＝0.3×10＝1.31÷1000＝
25.8×100＝0.8×0.05＝0.1×0.3＝1.1×0.06＝
二、列竖式计算。
6.7×0.030.75×0.141.7×0.192.8×8.02
0.91×0.075.3×2.40.64×0.871.9×61.2
810×0.040.13×65.1×0.981.6×96.8
0.82×0.68.9×4.54×0.7132.5×0.64
一、口算。
0.9×2＝5×0.9＝0.5×1000＝78.4÷10＝
5.26×10＝80×0.08＝0.5×0.7＝0.7×0.4＝
0.8×3＝3×0.5＝0.4×10＝58.5÷1000＝
8.55×1000＝0.5×0.5＝0.6×0.3＝0.4×70＝
二、列竖式计算。
4.5×0.37.7×8.74.3×0.680.45×6.21
0.72×0.020.45×0.326.3×3.80.68×1.48
2500×0.60.45×6.80.95×4.65.8×8.3
2.8×0.60.61×1.29.7×5.16.4×0.34
一、口算。
0.8×3＝9×0.7＝0.5×1000＝0.507÷100＝
6.12×100＝0.8×0.7＝0.4×0.4＝1.9×900＝
0.7×8＝9×0.5＝0.9×1000＝81.8÷1000＝
0.536×1000＝0.05×0.08＝0.3×80＝0.04×0.9＝
二、列竖式计算。
0.33×0.040.65×0.330.33×0.160.19×6.2
4.9×0.057.6×5.50.83×0.820.24×51.5
110×0.036.2×0.460.73×4.30.33×7.62
1.5×0.077.6×0.258.1×0.1539.9×0.22
一、口算。
0.4×7＝9×0.7＝0.001×100＝86.5÷10＝
69.2×1000＝0.01×0.7＝0.7×20＝1.4×80＝
0.9×3＝5×0.8＝0.09×1000＝78.7÷100＝
91.1×10＝0.1×0.06＝0.006×40＝1.7×0.07＝
二、列竖式计算。
7.8×0.38×9.90.96×0.238.5×84.6
0.43×0.068.8×1.77.6×0.840.8×89.1
4.3×0.70.33×0.80.24×6.90.58×5.88
0.35×0.40.44×0.830.73×0.575.1×5.1
一、口算。
0.4×8＝2×0.2＝0.04×1000＝54.6÷10＝
10.7×100＝0.07×0.7＝0.006×9＝0.1×0.3＝
0.3×8＝8×0.7＝0.02×100＝1.32÷1000＝
39.2×1000＝9×0.5＝0.09×0.07＝0.4×0.5＝
二、列竖式计算。
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