北师大版四年级数学下册小数乘法综合练习题14.docx

北师大版四年级数学下册小数乘法综合练习题14.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14

一、口算。

0.8×5＝2×0.3＝0.004×10＝0.687÷1000＝

0.013×1000＝20×0.02＝0.04×0.05＝0.1×6＝

0.2×9＝7×0.7＝0.3×1000＝0.1÷10＝

0.317×10＝0.2×0.07＝0.05×8＝1.4×80＝

二、列竖式计算。

7.9×0.025.2×2.30.51×5.99.2×8.7

7.4×0.20.19×0.520.87×4.96.8×9.18

9.1×0.072.6×0.164.8×0.739.5×3.49

2.6×0.59.8×0.19×0.3846.7×6

一、口算。

0.7×3＝4×0.8＝0.006×10＝2.54÷1000＝

9.51×10＝0.8×0.02＝0.004×0.08＝0.08×0.05＝

0.4×4＝4×0.8＝0.008×1000＝6.66÷1000＝

76.5×1000＝0.08×0.04＝0.04×0.04＝1×8＝

二、列竖式计算。

0.23×0.076.1×6.10.24×0.899.3×15.6

2.9×0.69.9×1.50.17×2.80.65×93.4

58×0.30.15×74.2×0.672.8×7.64

3.8×0.067.3×0.170.25×0.4197.4×0.6

一、口算。

0.4×4＝5×0.9＝0.09×1000＝3.29÷100＝

35.1×10＝7×0.3＝0.5×0.4＝0.08×6＝

0.9×7＝9×0.3＝0.3×1000＝0.463÷1000＝

0.13×1000＝9×0.4＝0.03×0.4＝0.14×0.3＝

二、列竖式计算。

8.7×0.20.43×0.640.5×0.317.1×26.1

0.22×0.045.2×72.2×0.776.4×1.06

770×0.041.8×6.20.17×0.860.6×5.68

4.7×0.20.51×0.310.24×0.7793×0.55

一、口算。

0.6×2＝3×0.4＝0.006×100＝0.842÷100＝

0.734×100＝5×0.08＝0.03×50＝0.06×0.5＝

0.7×6＝3×0.8＝0.3×100＝29÷10＝

0.01×1000＝70×0.09＝0.009×3＝0.06×0.08＝

二、列竖式计算。

0.85×0.093.9×0.413×74.4×6.27

1.8×0.099×0.870.25×5.30.15×1.61

0.69×0.90.28×8.90.78×0.450.79×22.5

3.6×0.47.2×0.173.1×5.63.3×0.36

一、口算。

0.8×8＝7×0.4＝0.004×10＝2.16÷10＝

0.445×10＝60×0.08＝0.3×0.2＝0.17×5＝

0.6×8＝8×0.4＝0.6×100＝0.506÷1000＝

2.9×10＝7×0.2＝0.004×3＝0.9×2＝

二、列竖式计算。

0.21×0.78.9×5.10.79×0.477.2×6.03

0.61×0.070.31×8.10.95×8.13.2×40.5

890×0.080.87×2.58.9×5.40.17×31.1

1.5×0.090.89×0.90.35×0.865.62×3.5

一、口算。

0.9×9＝4×0.5＝0.006×10＝5.13÷1000＝

0.6×100＝0.04×0.04＝0.1×700＝0.03×0.7＝

0.5×6＝9×0.2＝0.001×1000＝1.94÷100＝

0.929×1000＝5×0.02＝0.04×0.09＝0.1×80＝

二、列竖式计算。

1.3×0.70.93×0.715.7×0.252.5×5.33

9.3×0.20.62×3.80.89×4.47.2×1.07

920×0.030.16×0.710.97×9.10.96×52.8

6.3×0.089.2×6.20.9×0.426.21×0.27

一、口算。

0.1×7＝4×0.7＝0.4×100＝5.71÷10＝

0.786×100＝0.7×0.2＝0.5×40＝1.2×20＝

0.3×5＝8×0.6＝0.006×1000＝4.66÷1000＝

1.72×10＝0.9×0.07＝0.8×0.06＝1.4×200＝

二、列竖式计算。

5.8×0.88.2×30.18×0.444.5×77.7

9.2×0.040.83×0.830.46×9.95.9×9.42

5500×0.040.45×2.97.5×0.350.29×8.75

0.84×0.57.4×2.90.36×0.4428.1×0.42

一、口算。

0.3×5＝7×0.3＝0.9×1000＝4.25÷10＝

34.3×10＝0.6×0.6＝0.06×0.05＝2×60＝

0.3×7＝6×0.7＝0.2×100＝0.991÷10＝

63.6×10＝0.08×0.05＝0.01×20＝0.06×7＝

二、列竖式计算。

0.27×0.90.17×5.78.4×30.16×1.79

0.28×0.35.9×0.670.86×6.60.37×31.9

4.5×0.085.8×0.15.4×8.93.1×46.3

0.79×0.80.14×0.430.74×0.393.3×8.5

一、口算。

0.9×8＝5×0.9＝0.04×100＝66.5÷1000＝

0.78×1000＝7×0.8＝0.02×0.7＝0.04×5＝

0.2×5＝9×0.8＝0.4×100＝3.1÷1000＝

87.1×10＝0.02×0.03＝0.005×200＝1.6×80＝

二、列竖式计算。

8.5×0.090.95×9.56.9×0.773.3×94.9

0.21×0.21.9×0.950.42×0.543.1×3.24

48×0.36.5×4.10.64×3.48.5×91.7

0.59×0.078.5×6.39×2.96.18×0.61

一、口算。

0.3×5＝5×0.5＝0.4×100＝0.618÷10＝

0.245×1000＝3×0.09＝0.01×0.07＝0.17×600＝

0.7×2＝5×0.4＝0.04×1000＝93.6÷100＝

0.483×10＝0.4×0.3＝0.005×500＝0.2×0.8＝

二、列竖式计算。

0.45×0.73.2×0.460.92×0.750.93×95.1

0.72×0.070.46×10.13×90.87×3.55

3.3×0.20.91×3.48.2×0.834.6×57.4

0.58×0.040.45×2.43.1×34.17×9.9

一、口算。

0.8×4＝7×0.4＝0.06×100＝1.88÷1000＝

0.499×1000＝0.05×0.07＝0.01×200＝0.1×20＝

0.4×2＝5×0.7＝0.03×100＝0.09÷1000＝

0.347×1000＝0.3×0.3＝0.8×5＝1.1×400＝

二、列竖式计算。

0.87×0.061.8×10.18×0.843.7×85.7

3.1×0.040.15×0.130.31×0.990.95×8.17

52×0.70.39×0.450.66×9.45.1×31.9

0.86×0.29.6×0.730.51×4.11.74×8.6

一、口算。

0.5×3＝7×0.2＝0.01×100＝0.285÷100＝

2.35×1000＝0.1×0.5＝0.5×0.3＝0.5×0.02＝

0.8×4＝5×0.5＝0.006×10＝5.81÷1000＝

0.36×1000＝0.3×0.09＝0.009×0.3＝0.09×50＝

二、列竖式计算。

0.21×0.30.29×0.631×8.80.38×8.07

0.67×0.30.83×0.480.83×5.98.8×5.66

1600×0.050.67×3.40.24×8.30.35×12.1

0.57×0.90.46×0.60.87×0.1589.6×0.23

一、口算。

0.7×5＝5×0.8＝0.9×10＝0.16÷100＝

0.72×100＝0.01×0.03＝0.3×20＝0.2×90＝

0.4×2＝8×0.9＝0.6×1000＝8.25÷100＝

9.77×100＝50×0.08＝0.009×500＝0.02×900＝

二、列竖式计算。

9.6×0.50.68×0.156.8×0.88.9×4.21

1.8×0.20.29×70.41×0.568.9×3.38

5.7×0.60.83×0.91.8×6.88.4×6.2

0.17×0.28.8×0.458.5×2.216.5×7.8

一、口算。

0.4×2＝4×0.2＝0.7×10＝0.588÷1000＝

6.2×100＝80×0.06＝0.4×0.7＝0.01×0.08＝

0.8×2＝6×0.5＝0.03×1000＝0.992÷10＝

0.559×10＝0.09×0.05＝0.01×20＝0.12×0.6＝

二、列竖式计算。

0.34×0.33.1×6.95.2×0.913.2×9.23

0.13×0.080.38×0.470.78×0.638.6×5.86

9.3×0.073.9×1.62.5×0.730.78×4.2

2.6×0.62.3×9.91.2×9.49.07×9.4

一、口算。

0.8×7＝8×0.5＝0.09×100＝2.23÷1000＝

3.49×10＝3×0.09＝0.8×9＝0.11×8＝

0.6×7＝7×0.7＝0.3×100＝5.24÷10＝

2.59×1000＝90×0.08＝0.002×6＝0.08×0.06＝

二、列竖式计算。

6.3×0.56.7×3.10.78×0.340.6×9.03

0.19×0.060.84×0.430.16×0.930.37×94

1100×0.70.78×1.64.5×0.490.94×54.9

0.18×0.040.54×0.189.9×4.42.43×9.2

一、口算。

0.6×7＝8×0.7＝0.002×1000＝20.6÷1000＝

5.73×1000＝0.6×0.07＝0.2×400＝0.02×3＝

0.7×4＝4×0.5＝0.09×100＝9.8÷100＝

42.2×100＝0.8×0.03＝0.04×0.3＝0.02×60＝

二、列竖式计算。

2.9×0.060.62×6.60.6×0.950.7×2.12

3.1×0.090.6×2.66.1×0.50.68×44.5

57×0.40.81×5.54.6×4.45.7×52.1

0.72×0.070.46×0.91.1×4.517.1×0.52

一、口算。

0.1×3＝4×0.7＝0.1×100＝0.644÷100＝

31.8×100＝0.08×0.03＝0.005×5＝1.2×2＝

0.8×6＝9×0.3＝0.05×10＝0.157÷100＝

2.11×100＝5×0.6＝0.03×0.06＝0.13×7＝

二、列竖式计算。

2.6×0.073.6×3.50.53×9.10.93×31.6

6.6×0.35.9×1.90.72×5.85.1×7.85

3.5×0.20.85×0.740.36×0.262×52.9

0.83×0.080.29×6.20.97×0.664.22×4.2

一、口算。

0.7×2＝3×0.5＝0.009×10＝0.365÷10＝

1.9×1000＝50×0.08＝0.05×700＝0.05×0.9＝

0.2×3＝9×0.2＝0.09×1000＝0.566÷10＝

80.9×10＝10×0.3＝0.003×40＝0.3×30＝

二、列竖式计算。

0.27×0.040.73×0.352.9×70.15×24.9

8.7×0.040.87×6.90.74×6.40.18×51.7

8.2×0.077.6×0.46.9×0.218.9×22.5

0.73×0.64.8×3.24.4×8.536.6×9.1

一、口算。

0.7×9＝7×0.9＝0.05×100＝0.223÷10＝

85×10＝6×0.2＝0.002×90＝0.02×6＝

0.6×7＝3×0.8＝0.1×1000＝82÷10＝

42.9×1000＝30×0.07＝0.002×5＝0.16×800＝

二、列竖式计算。

8.4×0.45.7×0.553.9×7.60.95×31.3

6.5×0.080.31×14.3×0.144.7×26.6

9800×0.40.69×0.220.32×8.46.8×1.19

0.48×0.050.7×1.38.5×2.17.72×5.8

一、口算。

0.7×8＝8×0.4＝0.7×1000＝0.534÷100＝

0.981×10＝0.2×0.2＝0.8×6＝0.2×0.09＝

0.1×4＝4×0.6＝0.09×1000＝6.7÷100＝

84.9×1000＝90×0.9＝0.01×7＝1×0.9＝

二、列竖式计算。

0.84×0.99.7×0.390.5×0.867.3×71.8

8.7×0.030.67×0.34.8×2.80.93×2.09

430×0.31.8×2.59.9×1.34×5.11

4.1×0.52.2×60.17×0.544.07×0.47