北师大版四年级数学下册小数乘法综合练习题39.docx

北师大版四年级数学下册小数乘法综合练习题39.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39

一、口算。

0.2×4＝2×0.6＝0.7×100＝0.702÷100＝

8.4×100＝0.02×0.05＝0.006×0.9＝0.14×500＝

0.8×2＝6×0.5＝0.002×10＝0.291÷10＝

8.34×100＝0.1×0.03＝0.7×0.02＝0.18×0.9＝

二、列竖式计算。

7.1×0.090.4×1.41.7×3.29×42.8

0.91×0.040.35×0.460.75×6.40.58×6.5

6.2×0.070.53×5.72.7×0.130.25×8.49

3.7×0.56.1×7.50.67×7.624.4×6.4

一、口算。

0.4×2＝6×0.3＝0.09×100＝8.4÷1000＝

0.437×1000＝0.1×0.03＝0.009×60＝0.11×40＝

0.3×5＝9×0.2＝0.004×10＝80÷1000＝

1.57×100＝10×0.8＝0.02×0.2＝0.06×300＝

二、列竖式计算。

8.9×0.090.7×9.63.6×9.10.29×17.5

8.2×0.67.7×0.951.4×0.643.9×54.3

61×0.50.17×1.20.44×2.60.25×1.27

5.6×0.40.34×6.60.19×9.71.19×7.8

一、口算。

0.6×9＝9×0.6＝0.09×100＝1.9÷1000＝

25.4×10＝0.08×0.6＝0.7×0.2＝1.1×4＝

0.7×6＝7×0.8＝0.2×100＝0.72÷1000＝

3.98×10＝8×0.03＝0.7×90＝0.14×6＝

二、列竖式计算。

0.49×0.41.7×9.50.86×0.86.6×59.3

2.5×0.043.1×2.94.1×8.20.89×6.61

3300×0.33.4×0.993.2×0.740.85×15.3

0.71×0.030.83×0.943.3×0.7898.6×3

一、口算。

0.9×9＝7×0.2＝0.02×1000＝68.1÷100＝

63.2×10＝0.4×0.05＝0.07×0.3＝0.05×800＝

0.3×4＝9×0.9＝0.4×1000＝8.47÷100＝

0.819×10＝0.06×0.04＝0.009×0.05＝0.06×0.8＝

二、列竖式计算。

0.47×0.098.5×9.92.6×0.384.7×65.2

3.2×0.30.3×4.98.3×2.60.78×17.9

6200×0.60.12×0.220.75×84.4×93.1

7.4×0.060.39×0.574.4×4.642.2×2.6

一、口算。

0.6×3＝3×0.8＝0.009×100＝0.032÷10＝

76×100＝0.03×0.08＝0.9×2＝0.15×60＝

0.7×8＝4×0.2＝0.08×10＝2.35÷100＝

0.789×100＝50×0.02＝0.003×500＝0.4×400＝

二、列竖式计算。

5.4×0.80.2×0.823.9×0.112.9×16.7

0.39×0.30.65×0.336.3×0.680.27×13.5

9200×0.041.9×8.10.98×0.190.58×95

8.5×0.045×7.91.2×3.963.6×9.4

一、口算。

0.6×3＝6×0.2＝0.02×10＝5.4÷10＝

6.9×100＝0.07×0.05＝0.009×0.3＝0.4×0.02＝

0.5×8＝7×0.4＝0.009×1000＝8.47÷10＝

1.68×100＝0.8×0.08＝0.5×4＝0.07×0.4＝

二、列竖式计算。

0.21×0.22.7×0.977.4×0.30.31×2.07

0.96×0.45.5×3.74.9×1.70.14×1.35

1.7×0.074.4×0.750.86×6.20.59×6.77

0.64×0.064.2×0.699.1×6.46.54×0.97

一、口算。

0.1×3＝9×0.7＝0.006×100＝2.61÷1000＝

65.4×100＝0.9×0.6＝0.2×60＝1.5×50＝

0.1×2＝9×0.4＝0.004×1000＝7.55÷100＝

0.396×100＝1×0.08＝0.6×0.4＝0.17×8＝

二、列竖式计算。

4.9×0.40.7×0.561.4×0.490.75×23.1

8.8×0.046.7×0.189.9×0.530.17×3.27

830×0.050.13×0.480.88×0.920.89×9.12

0.42×0.23.6×0.333.5×0.8968.8×9.4

一、口算。

0.3×3＝6×0.9＝0.5×100＝4.86÷10＝

0.537×10＝6×0.07＝0.005×8＝1.9×0.05＝

0.1×8＝7×0.7＝0.005×10＝43.7÷10＝

0.399×100＝0.3×0.4＝0.004×700＝0.3×0.05＝

二、列竖式计算。

4.2×0.60.41×0.839.9×0.442.3×27.4

0.52×0.70.28×0.470.49×5.95.6×51.8

690×0.31.5×9.39.1×7.50.75×17.7

0.17×0.48.9×7.20.41×2.84.7×0.31

一、口算。

0.9×9＝4×0.7＝0.2×10＝74.3÷10＝

0.225×100＝8×0.05＝0.8×50＝0.2×0.6＝

0.2×5＝9×0.4＝0.004×10＝2.6÷100＝

86.1×100＝0.01×0.05＝0.08×60＝0.15×0.03＝

二、列竖式计算。

9.4×0.40.58×0.352.7×3.27.9×93.4

7.6×0.040.87×23.4×0.398.7×9.52

78×0.80.76×70.84×8.19.2×13.5

8.2×0.28.6×0.340.58×0.1182.9×4

一、口算。

0.5×4＝2×0.4＝0.007×10＝0.5÷10＝

2.58×10＝0.3×0.5＝0.03×0.3＝1×0.07＝

0.2×2＝5×0.8＝0.01×10＝10.5÷10＝

0.452×10＝0.08×0.6＝0.03×40＝0.01×0.5＝

二、列竖式计算。

5.7×0.80.14×7.83.6×42.9×30.9

2.4×0.20.93×0.786.3×0.320.56×16.2

860×0.98.8×5.30.41×0.613.2×5.62

9.8×0.91.5×0.840.71×9.442.3×0.71

一、口算。

0.1×7＝5×0.3＝0.8×1000＝74.9÷1000＝

0.774×10＝5×0.05＝0.08×7＝0.13×0.9＝

0.7×5＝2×0.7＝0.001×1000＝45.2÷10＝

5.63×10＝5×0.3＝0.008×80＝0.06×6＝

二、列竖式计算。

0.83×0.030.71×3.33.9×6.26.2×36.3

8.6×0.098.3×9.20.47×56.9×3.58

19×0.081.8×0.197.8×8.80.5×62

2.6×0.50.91×0.360.3×0.2512.1×0.47

一、口算。

0.6×3＝2×0.6＝0.6×100＝0.577÷1000＝

1.2×10＝50×0.8＝0.07×0.07＝0.15×0.4＝

0.6×2＝5×0.7＝0.003×1000＝7.33÷100＝

1.41×10＝0.03×0.08＝0.001×8＝0.05×500＝

二、列竖式计算。

4.5×0.058.4×6.93.7×4.34.7×62

5.9×0.50.46×0.580.1×0.270.67×1.54

440×0.060.89×8.56.5×4.80.21×5.61