北师大版四年级数学下册小数乘法综合练习题40.docx

北师大版四年级数学下册小数乘法综合练习题40.docx

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北师大版四年级数学下册小数乘法综合练习题40

一、口算。

0.1×2＝5×0.5＝0.001×1000＝38÷10＝

33.7×100＝5×0.04＝0.006×0.07＝0.6×600＝

0.7×8＝8×0.6＝0.7×100＝0.548÷100＝

52.9×100＝3×0.4＝0.1×0.05＝1.3×0.08＝

二、列竖式计算。

0.23×0.050.69×0.970.72×87.2×16.6

5.8×0.099.4×9.44.6×0.831.1×28.7

5.2×0.070.17×90.67×0.630.1×2.51

4.7×0.57.3×0.190.33×2.61.03×5.1

一、口算。

0.3×6＝9×0.8＝0.6×100＝1.1÷10＝

0.777×1000＝50×0.7＝0.006×7＝0.12×0.7＝

0.6×3＝8×0.3＝0.7×10＝11.1÷100＝

3.79×100＝3×0.5＝0.002×0.05＝1.6×400＝

二、列竖式计算。

6.8×0.30.52×9.73.2×60.5×61.5

0.56×0.50.76×0.836×0.370.47×5.21

75×0.70.47×7.30.79×9.23.1×45.9

0.87×0.78.9×4.10.39×6.343.5×0.61

一、口算。

0.9×5＝5×0.8＝0.008×1000＝7.5÷100＝

4.97×100＝0.05×0.3＝0.009×80＝2×70＝

0.1×4＝7×0.3＝0.04×100＝51÷100＝

0.236×10＝6×0.05＝0.3×30＝1.4×0.07＝

二、列竖式计算。

2.9×0.58.5×4.31.9×1.58.6×4.99

6.7×0.054×0.168.3×0.230.31×42.6

1400×0.040.47×0.931.6×0.95.3×15.7

0.37×0.060.98×9.57.2×3.27.71×4.7

一、口算。

0.4×5＝3×0.6＝0.6×1000＝0.104÷1000＝

6.25×1000＝0.07×0.03＝0.01×7＝0.17×30＝

0.4×7＝5×0.7＝0.001×1000＝18.5÷100＝

69.8×10＝0.4×0.5＝0.06×2＝0.6×8＝

二、列竖式计算。

7.4×0.030.8×0.255.5×70.4×5.73

0.79×0.086.6×0.390.29×0.539.1×17.8

720×0.030.12×7.34.4×2.94.5×9.65

0.47×0.030.23×5.22.1×7.437.3×0.24

一、口算。

0.4×6＝3×0.2＝0.7×100＝5.88÷10＝

3.18×10＝0.7×0.06＝0.07×0.08＝0.4×0.6＝

0.9×2＝6×0.9＝0.05×10＝81.6÷100＝

0.685×10＝0.9×0.8＝0.01×50＝0.1×40＝

二、列竖式计算。

4.3×0.070.21×7.20.91×2.77.8×50.4

3.6×0.91.2×8.30.85×0.920.57×40.1

76×0.080.31×8.56.3×0.247.1×6.74

0.15×0.24.4×0.637.2×0.664.57×1.4

一、口算。

0.6×3＝4×0.8＝0.03×10＝0.632÷100＝

12.8×10＝10×0.08＝0.4×7＝0.19×6＝

0.6×4＝9×0.5＝0.04×1000＝59.8÷100＝

46.3×100＝0.06×0.06＝0.003×6＝0.9×0.03＝

二、列竖式计算。

0.64×0.20.85×0.850.23×0.40.79×5.29

0.68×0.073.9×0.694.9×0.996.6×8.32

21×0.030.61×3.90.19×5.40.61×8.97

0.91×0.96.9×2.58.4×0.829.27×0.33

一、口算。

0.9×7＝6×0.3＝0.005×1000＝5.35÷100＝

48.5×100＝0.05×0.6＝0.05×90＝0.17×0.2＝

0.7×7＝2×0.8＝0.007×10＝0.872÷100＝

51.8×100＝0.6×0.9＝0.007×2＝1.1×400＝

二、列竖式计算。

0.52×0.092×0.11.1×4.80.59×50.9

2.1×0.58.9×0.987×0.478×72.9

820×0.70.28×0.233.8×1.23.8×36.7

6.1×0.87.3×0.930.39×0.238.41×0.92

一、口算。

0.2×6＝2×0.6＝0.01×1000＝0.859÷10＝

26.1×100＝1×0.03＝0.009×0.07＝0.01×7＝

0.1×2＝4×0.3＝0.06×1000＝9.93÷10＝

0.074×100＝0.6×0.5＝0.08×0.04＝0.16×800＝

二、列竖式计算。

0.93×0.096.7×3.52.4×0.416.7×69.6

0.78×0.030.57×0.780.71×0.284.7×2.97

8.8×0.80.81×8.28.5×0.472.1×82.3

0.41×0.70.89×0.320.7×6.34.08×2.5

一、口算。

0.5×8＝3×0.4＝0.02×100＝0.36÷10＝

1.36×100＝0.3×0.02＝0.06×0.8＝0.14×2＝

0.9×2＝7×0.6＝0.01×10＝3.8÷100＝

0.328×100＝50×0.06＝0.3×5＝1.6×700＝

二、列竖式计算。

0.27×0.50.71×0.120.89×0.869.7×1.92

3.1×0.091.2×0.376.1×0.126.7×27.1

3.5×0.020.34×0.740.77×0.217×5.98

0.97×0.75.5×5.69.8×0.4641.1×0.88

一、口算。

0.5×2＝9×0.5＝0.09×100＝32.4÷10＝

9.56×1000＝6×0.08＝0.7×2＝0.3×0.03＝

0.1×7＝2×0.2＝0.001×100＝11.2÷1000＝

30.6×1000＝0.3×0.2＝0.5×400＝0.14×90＝

二、列竖式计算。

5.5×0.40.79×6.90.54×7.50.2×85.5

0.36×0.73×4.11.1×8.90.99×78.8

1800×0.80.86×0.739.2×0.295.8×3.31

0.34×0.050.56×0.828.8×1.434.6×7.8

一、口算。

0.2×8＝4×0.9＝0.001×10＝0.53÷10＝

58.8×100＝7×0.5＝0.008×0.02＝0.15×0.03＝

0.4×5＝3×0.3＝0.9×1000＝0.218÷100＝

0.47×1000＝80×0.4＝0.008×0.5＝0.3×50＝

二、列竖式计算。

3.2×0.040.36×9.52.3×0.90.77×38

3.2×0.029.6×1.54.9×8.95.3×13.3

7.8×0.72.8×0.961.5×6.90.91×68.1

0.12×0.50.7×2.59.5×13.89×7.4

一、口算。

0.7×4＝4×0.8＝0.07×10＝0.2÷100＝

0.275×10＝10×0.6＝0.9×0.2＝0.14×0.8＝

0.3×7＝7×0.4＝0.03×100＝1.14÷100＝

87.9×100＝8×0.02＝0.1×60＝0.02×90＝

二、列竖式计算。

1.5×0.053.6×0.110.39×0.390.95×8.47

4.1×0.030.94×2.83.3×0.615.8×76.2

0.95×0.55.4×0.694.8×0.995.5×5.46

0.47×0.050.62×0.296.9×7.38.35×0.57

一、口算。

0.9×7＝7×0.9＝0.005×1000＝0.23÷1000＝

9.66×100＝0.07×0.3＝0.005×2＝1.8×0.02＝

0.4×5＝9×0.8＝0.4×1000＝45.3÷1000＝

39.8×100＝0.4×0.8＝0.002×0.2＝0.06×0.09＝

二、列竖式计算。

4.4×0.085.9×0.920.19×1.49.3×3.88

0.99×0.90.24×9.30.84×9.50.89×46.7

55×0.020.13×0.74.4×7.40.66×18.6

1.6×0.038.1×0.617.3×5.572.3×2.7

一、口算。

0.1×8＝5×0.6＝0.005×1000＝5.19÷100＝

39.1×100＝9×0.07＝0.008×60＝0.15×0.7＝

0.9×7＝8×0.2＝0.009×100＝55.7÷1000＝

45.8×1000＝3×0.5＝0.04×500＝0.2×4＝

二、列竖式计算。

0.11×0.50.29×0.120.73×0.998.8×4.19

4.2×0.051.4×0.390.64×0.420.21×3.15

0.83×0.40.27×0.334.8×8.95.8×4.73

1.6×0.98.4×4.27.5×0.313.45×1.8

一、口算。

0.8×4＝6×0.3＝0.006×10＝8.9÷10＝

4.82×1000＝90×0.08＝0.01×0.05＝0.5×400＝

0.1×6＝3×0.5＝0.002×10＝1.51÷100＝

0.987×100＝70×0.06＝0.001×4＝0.19×8＝

二、列竖式计算。

7.5×0.053.8×0.33.8×8.13×96.7

8.2×0.23.2×6.44.7×6.53.8×9.61

0.83×0.60.32×6.46×0.227.3×4.18

7.8×0.053.2×64.4×4.184.4×0.25

一、口算。

0.7×2＝9×0.9＝0.003×10＝7.14÷1000＝

0.342×1000＝0.06×0.4＝0.1×0.2＝1.3×0.7＝

0.5×4＝8×0.3＝0.03×100＝0.26÷100＝

62.1×100＝70×0.08＝0.06×0.03＝0.2×0.07＝

二、列竖式计算。

0.91×0.040.59×2.63.8×0.888.1×7.96

1.4×0.050.46×0.962.4×0.310.4×2.4

0.83×0.060.65×0.650.28×0.30.86×66.4

0.51×0.096.2×0.226.2×0.371.52×0.43

一、口算。

0.3×4＝9×0.6＝0.04×10＝76.4÷100＝

41.7×10＝3×0.09＝0.009×9＝1.4×0.6＝

0.3×2＝4×0.7＝0.07×10＝8.55÷100＝

95.9×10＝0.8×0.08＝0.009×0.5＝1.1×0.09＝

二、列竖式计算。

8.4×0.58.6×5.20.78×0.279.3×48.7

8.5×0.81.1×0.790.15×0.420.63×6.55

0.58×0.081.9×90.35×9.10.9×7.44

6.4×0.080.81×6.20.25×0.8796.2×8.4

一、口算。

0.9×9＝6×0.3＝0.5×1000＝48.1÷1000＝

2.72×10＝0.7×0.07＝0.5×500＝0.3×50＝

0.9×7＝7×0.4＝0.4×1000＝0.814÷100＝

0.55×1000＝0.7×0.2＝0.005×500＝0.3×0.05＝

二、列竖式计算。

7.8×0.082.9×0.264×3.20.86×6.29

0.78×0.78.6×5.49.9×0.628.2×9.33

3.1×0.040.77×0.20.76×0.483.4×49.7

0.23×0.50.25×0.230.63×0.1976.7×0.81

一、口算。

0.2×4＝2×0.2＝0.005×100＝0.291÷1000＝

7.19×1000＝4×0.03＝0.07×0.04＝1.8×70＝

0.2×9＝3×0.7＝0.7×10＝0.704÷100＝

0.853×10＝0.1×0.5＝0.06×80＝2×800＝

二、列竖式计算。

0.32×0.29.1×6.29.1×20.29×6.74

4.2×0.020.32×5.57×0.756.7×1.23

230×0.074×9.74.4×0.780.64×9.74

0.89×0.029.6×0.330.35×0.5489.6×3.5

一、口算。

0.3×8＝9×0.7＝0.09×10＝17.7÷1000＝

3.63×10＝5×0.03＝0.04×0.09＝1.3×40＝

0.1×6＝2×0.4＝0.006×10＝9.39÷100＝

3.9×1000＝0.08×0.03＝0.8×4＝0.02×0.4＝

二、列竖式计算。

4.6×0.50.12×0.32.1×0.357.4×2.04

5.7×0.086.3×0.340.87×8.43.7×81.4

840×0.060.17×7.30.4×6.30.48×49.2

1.9×0.52.4×80.37×0.532.39×0.43