北师大版四年级数学下册小数乘法综合练习题140.docx

北师大版四年级数学下册小数乘法综合练习题140.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140

一、口算。

0.8×7＝8×0.5＝0.09×100＝2.04÷100＝

0.217×100＝80×0.04＝0.7×0.8＝0.16×400＝

0.7×3＝3×0.5＝0.005×100＝0.993÷100＝

0.912×100＝0.02×0.06＝0.006×600＝1.2×9＝

二、列竖式计算。

0.66×0.090.66×6.40.99×6.30.56×9.58

0.93×0.40.38×7.10.39×6.90.17×42.7

15×0.49×2.50.41×0.394.8×17

0.45×0.070.69×80.73×1.63.24×4.9

一、口算。

0.5×2＝3×0.6＝0.03×10＝0.979÷10＝

0.561×100＝0.08×0.9＝0.002×50＝0.12×6＝

0.4×9＝4×0.3＝0.002×100＝93.9÷100＝

0.305×1000＝1×0.02＝0.08×2＝0.04×0.03＝

二、列竖式计算。

0.91×0.026.4×80.64×0.260.39×2.1

0.77×0.050.96×3.77.3×4.21.8×84.5

3900×0.72×0.330.15×6.85.6×4.03

0.49×0.093×3.90.54×0.9348.1×0.17

一、口算。

0.2×2＝5×0.9＝0.008×10＝6.14÷10＝

48.1×100＝0.3×0.08＝0.04×700＝1.9×0.06＝

0.9×2＝7×0.6＝0.002×1000＝1.46÷100＝

0.434×1000＝3×0.7＝0.2×60＝0.01×0.2＝

二、列竖式计算。

0.96×0.083.1×0.790.23×4.52.5×28.8

0.76×0.080.39×0.320.43×7.80.59×1.78

1.9×0.060.72×0.920.32×0.10.79×3.07

1.1×0.38.5×0.86.1×0.948.23×0.62

一、口算。

0.9×5＝6×0.2＝0.01×1000＝27.5÷100＝

0.33×100＝50×0.9＝0.4×0.03＝1.8×20＝

0.7×8＝3×0.7＝0.4×100＝4.11÷10＝

9.81×10＝0.06×0.03＝0.04×0.08＝0.2×0.07＝

二、列竖式计算。

6.8×0.60.7×1.90.97×0.291×2.61

3.4×0.050.68×0.610.63×0.440.29×2.49

28×0.60.84×2.20.1×0.957.9×4.86

3.4×0.020.92×0.190.72×0.3693.6×0.12

一、口算。

0.6×2＝3×0.9＝0.01×1000＝6÷1000＝

0.407×1000＝0.02×0.3＝0.06×700＝0.3×0.8＝

0.8×2＝8×0.8＝0.7×100＝70.1÷100＝

55.7×10＝8×0.03＝0.8×0.3＝1.8×8＝

二、列竖式计算。

0.63×0.063.8×0.580.37×0.480.48×55.3

0.24×0.070.45×2.76.1×6.50.4×65

390×0.050.83×0.178×0.13.2×41.7

8.9×0.77.3×0.690.44×0.2592.5×1.6

一、口算。

0.8×6＝5×0.9＝0.03×10＝0.955÷1000＝

52.3×10＝70×0.07＝0.004×0.8＝0.02×50＝

0.2×4＝4×0.3＝0.006×100＝7.78÷10＝

7.29×10＝90×0.08＝0.04×500＝0.05×2＝

二、列竖式计算。

6.4×0.72×5.40.47×0.920.87×3.84

0.35×0.80.86×0.93.8×1.79.2×34.6

53×0.093.1×8.10.99×0.696.8×17.8

0.48×0.60.85×0.570.6×0.654.36×0.35

一、口算。

0.3×8＝2×0.8＝0.04×100＝7.29÷10＝

1.03×10＝0.5×0.9＝0.003×0.05＝2×900＝

0.9×2＝3×0.7＝0.002×10＝95.6÷100＝

3.52×100＝3×0.9＝0.9×30＝0.11×0.2＝

二、列竖式计算。

0.24×0.62.9×3.38.1×0.913.8×92.1

3.2×0.032.8×9.40.41×7.38.3×44.4

1100×0.92.4×0.613.6×5.99.1×24.8

0.85×0.66.3×0.815×0.141.74×0.58

一、口算。

0.8×2＝4×0.4＝0.02×1000＝6.04÷1000＝

7.35×100＝5×0.6＝0.08×0.8＝0.5×0.9＝

0.5×3＝2×0.6＝0.6×100＝19.8÷1000＝

7.94×10＝0.6×0.02＝0.006×0.05＝0.04×0.9＝

二、列竖式计算。

0.92×0.61.6×7.30.33×0.589.7×96.3

5.8×0.037.9×0.251.4×2.91.3×6.73

8900×0.40.11×0.30.99×0.850.43×4.88

5.9×0.030.59×7.80.81×0.725.82×0.89

一、口算。

0.7×5＝4×0.6＝0.9×10＝4.37÷1000＝

0.94×1000＝40×0.08＝0.9×0.09＝0.09×0.4＝

0.2×8＝4×0.7＝0.3×10＝0.462÷100＝

45.3×1000＝7×0.6＝0.001×0.3＝0.2×70＝

二、列竖式计算。

7.6×0.61.6×0.720.93×4.10.94×80.4

3.5×0.50.3×0.517×0.860.26×5.17

3.4×0.080.92×0.979.4×1.33.7×2.52

3.4×0.50.84×52.5×0.5421.9×9.1

一、口算。

0.4×5＝6×0.3＝0.4×10＝83.9÷10＝

36.6×10＝6×0.05＝0.005×300＝0.16×0.8＝

0.5×2＝7×0.4＝0.004×10＝14.7÷1000＝

0.879×1000＝0.4×0.8＝0.8×80＝1.4×0.4＝

二、列竖式计算。

0.85×0.76.6×9.59×3.50.56×64.4

0.64×0.074.5×0.90.24×0.890.74×9.81

8800×0.070.92×2.85.4×6.82.7×6.31

2.4×0.071.7×4.16.7×74.56×0.9

一、口算。

0.1×2＝5×0.4＝0.04×10＝2.64÷1000＝

90.5×100＝0.7×0.07＝0.06×0.04＝0.3×60＝

0.8×6＝2×0.6＝0.1×100＝7.13÷100＝

79.4×1000＝6×0.07＝0.008×9＝0.5×0.9＝

二、列竖式计算。

9.7×0.070.41×1.30.51×50.71×68.6

4.5×0.52×3.90.39×3.31.9×91.8

280×0.090.11×0.770.26×0.89.4×1.82

3.2×0.055.5×7.98.4×0.869×0.1

一、口算。

0.4×6＝2×0.3＝0.02×1000＝41÷10＝

0.847×1000＝0.9×0.05＝0.1×40＝0.09×0.02＝

0.9×9＝3×0.3＝0.1×1000＝0.396÷100＝

62.4×100＝0.09×0.09＝0.2×8＝0.08×20＝

二、列竖式计算。

3.1×0.78.3×4.66.4×0.750.57×42.9

7.2×0.041.2×7.73×5.33.3×9.45

6100×0.020.42×4.36.9×1.71.7×8.98

5.9×0.60.78×8.35.7×0.5866.9×1.1

一、口算。

0.3×8＝9×0.4＝0.05×100＝0.296÷100＝

1×100＝0.06×0.09＝0.09×0.2＝0.14×0.9＝

0.6×3＝2×0.6＝0.8×1000＝0.824÷10＝

0.18×10＝40×0.05＝0.002×0.8＝0.04×0.02＝

二、列竖式计算。

9.8×0.89.1×0.91.4×0.743.1×78.7

2.9×0.043.9×3.60.78×2.80.25×3.8

8.1×0.060.66×1.30.22×6.34.1×88.4

8.6×0.91.8×3.83.2×38.58×0.24

一、口算。

0.8×5＝5×0.5＝0.03×100＝0.686÷1000＝

0.017×10＝0.02×0.03＝0.2×0.02＝0.3×80＝

0.8×9＝2×0.2＝0.002×1000＝0.98÷1000＝

2.37×10＝0.08×0.04＝0.008×700＝0.07×0.7＝

二、列竖式计算。

0.28×0.50.99×0.140.27×3.80.1×18.4

0.36×0.90.37×3.15.8×0.730.23×9.35

930×0.065.1×0.590.37×4.35.1×3.7

3.5×0.020.31×3.26.1×7.54.39×4.8

一、口算。

0.7×5＝3×0.9＝0.06×1000＝0.085÷100＝

1.79×10＝0.09×0.3＝0.006×0.04＝0.1×300＝

0.2×9＝5×0.8＝0.008×100＝0.579÷100＝

0.301×1000＝0.07×0.09＝0.6×50＝0.08×0.7＝

二、列竖式计算。

0.15×0.20.88×5.93.5×0.258.1×28.3

3.8×0.080.44×3.70.41×2.13.7×71.3

4.5×0.56.5×0.540.31×4.54.1×16.2

0.93×0.49×0.920.67×0.226.21×6.5

一、口算。

0.2×7＝9×0.9＝0.007×1000＝0.028÷1000＝

0.184×100＝0.01×0.3＝0.6×800＝1.9×0.2＝

0.3×9＝7×0.9＝0.9×100＝27.3÷100＝

6.39×100＝2×0.9＝0.009×0.08＝1.7×300＝

二、列竖式计算。

0.23×0.70.51×4.50.49×4.50.93×1.88

0.27×0.026.1×10.91×0.860.17×5.5

270×0.45×0.761.6×0.150.54×4.42

0.53×0.078.9×0.140.1×115.2×7.9

一、口算。

0.8×3＝9×0.6＝0.03×1000＝5.81÷10＝

4.82×10＝1×0.07＝0.02×500＝0.14×0.03＝

0.4×3＝2×0.4＝0.3×100＝0.745÷1000＝

0.268×100＝0.05×0.8＝0.03×5＝0.1×80＝

二、列竖式计算。

0.74×0.70.95×6.41.5×6.90.96×5.48

0.93×0.58.2×0.210.24×0.680.65×52.4

39×0.064×0.330.21×0.837.9×3.88

0.79×0.067×3.30.98×0.291.61×4.8

一、口算。

0.5×4＝3×0.9＝0.07×10＝46.9÷10＝

4.96×100＝0.07×0.03＝0.006×5＝1.5×80＝

0.5×5＝2×0.6＝0.008×100＝0.84÷1000＝

89.5×100＝0.01×0.02＝0.04×0.5＝0.06×60＝

二、列竖式计算。

0.88×0.060.14×0.141.1×0.920.13×65.5

0.26×0.087.4×0.878.5×0.940.59×6.62

3900×0.027×0.930.96×0.131.1×92

5.1×0.57.4×0.460.59×3.533×0.19

一、口算。

0.3×2＝9×0.6＝0.6×10＝0.398÷1000＝

0.984×100＝40×0.6＝0.004×90＝2×40＝

0.9×7＝8×0.4＝0.7×10＝0.874÷100＝

0.405×100＝0.08×0.6＝0.2×600＝0.16×300＝

二、列竖式计算。

0.73×0.020.86×80.92×0.570.82×27.7

0.42×0.85.6×0.250.56×4.30.55×6.68

150×0.070.98×4.69.1×6.80.51×63.5

0.85×0.036.7×0.240.47×0.672.58×0.8

一、口算。

0.4×5＝9×0.7＝0.6×1000＝66.6÷100＝

9.33×100＝80×0.2＝0.007×0.05＝0.13×5＝

0.3×8＝8×0.8＝0.02×1000＝0.863÷1000＝

1.18×100＝30×0.8＝0.007×50＝0.14×0.6＝

二、列竖式计算。

3.6×0.90.66×0.130.83×0.660.9×5.49

2.2×0.069.5×0.620.29×3.62.2×42.7

920×0.060.97×0.740.75×0.97×65

4.3×0.93.7×9.60.82×1.842×0.72