北师大版四年级数学下册第三单元小数乘法专项练习题14.docx

北师大版四年级数学下册第三单元小数乘法专项练习题14.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14

一、口算。

0.8×2＝4×0.9＝0.06×1000＝0.586÷10＝

32.1×1000＝7×0.6＝0.5×0.07＝0.02×5＝

0.4×4＝4×0.6＝0.08×10＝58.8÷10＝

6.54×1000＝70×0.07＝0.07×800＝2×40＝

二、列竖式计算。

8.8×0.050.61×0.530.5×0.210.5×49.2

0.15×0.68.1×0.815.3×3.40.66×86.6

0.28×0.33.1×0.935×0.220.54×27.4

0.65×0.092.2×9.26.7×0.2996.9×5.6

一、口算。

0.3×6＝3×0.2＝0.009×1000＝0.734÷10＝

48.5×10＝1×0.6＝0.003×0.8＝0.3×5＝

0.7×7＝7×0.7＝0.05×10＝0.68÷10＝

46.5×10＝50×0.02＝0.004×90＝0.1×70＝

二、列竖式计算。

0.97×0.046.8×0.530.34×0.550.64×3.17

0.97×0.51×0.220.52×1.10.45×30.6

27×0.090.51×8.50.87×0.710.39×36.2

0.57×0.070.9×0.948.3×0.267.31×6.4

一、口算。

0.2×8＝9×0.7＝0.001×1000＝0.439÷1000＝

8.9×10＝50×0.4＝0.2×0.04＝0.08×0.05＝

0.4×7＝9×0.4＝0.008×10＝0.352÷1000＝

54.1×1000＝0.04×0.07＝0.5×0.6＝0.04×0.07＝

二、列竖式计算。

7.3×0.086.3×6.19.9×70.22×2.79

0.12×0.032.9×5.70.96×0.70.96×84.2

8900×0.046.4×0.450.55×2.90.78×2.53

0.33×0.50.47×0.379.7×0.26.37×0.37

一、口算。

0.1×6＝5×0.8＝0.007×1000＝84÷100＝

0.527×100＝0.7×0.3＝0.01×9＝0.1×800＝

0.6×5＝6×0.3＝0.004×1000＝0.276÷100＝

96.1×10＝0.04×0.7＝0.07×20＝0.06×4＝

二、列竖式计算。

0.15×0.80.6×1.80.41×2.80.88×26.7

0.23×0.69.1×15.2×8.74×7.68

1.4×0.090.68×0.359.8×0.332.1×87.2

0.97×0.66.7×2.66×0.573.28×0.44

一、口算。

0.5×8＝5×0.8＝0.4×10＝87.9÷1000＝

7.39×100＝70×0.6＝0.006×80＝0.05×600＝

0.7×5＝6×0.9＝0.6×100＝0.834÷10＝

9.55×10＝0.04×0.4＝0.05×50＝0.1×0.05＝

二、列竖式计算。

5.1×0.28.3×7.90.19×7.50.35×5.12

0.82×0.60.22×3.80.91×0.150.71×6.64

3.2×0.080.71×0.664.8×2.33.5×1.34

5.5×0.62.4×63.5×9.45.55×0.65

一、口算。

0.5×6＝6×0.5＝0.4×100＝0.376÷10＝

8.37×10＝5×0.06＝0.9×40＝1.1×0.09＝

0.7×3＝3×0.9＝0.8×1000＝26.7÷100＝

0.832×100＝0.05×0.3＝0.08×600＝0.2×70＝

二、列竖式计算。

7.8×0.064.6×0.560.68×0.630.68×9.17

0.24×0.70.18×0.510.37×0.888.6×31.3

0.42×0.50.18×0.258.3×7.30.98×5.98

6.2×0.078.3×0.151.4×1.27.31×0.44

一、口算。

0.2×9＝5×0.4＝0.6×10＝72.9÷10＝

0.691×10＝0.01×0.02＝0.004×20＝0.2×0.3＝

0.2×8＝4×0.8＝0.08×10＝47.6÷1000＝

0.913×10＝3×0.2＝0.02×0.08＝0.19×3＝

二、列竖式计算。

0.39×0.095.8×1.87.7×5.50.75×6.52

3.4×0.70.92×0.950.12×0.930.78×43.1

41×0.80.31×0.447.7×2.30.21×7.06

3.7×0.070.72×0.966.6×0.4865.1×0.75

一、口算。

0.7×2＝8×0.9＝0.2×100＝84.4÷100＝

17.7×1000＝90×0.06＝0.3×0.8＝0.03×0.2＝

0.9×3＝6×0.5＝0.09×10＝21.7÷1000＝

0.54×10＝0.7×0.06＝0.008×0.4＝0.11×0.5＝

二、列竖式计算。

5.8×0.095×3.70.65×0.150.25×71.9

3.6×0.80.94×0.80.8×0.30.33×48

37×0.55.9×5.93.6×0.28.8×26.8

6.3×0.80.47×25.8×0.479.26×7.9

一、口算。

0.4×6＝5×0.8＝0.005×1000＝0.16÷1000＝

7.95×1000＝20×0.09＝0.001×0.6＝0.4×0.08＝

0.6×8＝4×0.7＝0.08×10＝0.59÷10＝

17.1×10＝0.03×0.08＝0.9×0.5＝0.03×200＝

二、列竖式计算。

1.3×0.32.7×7.30.78×0.690.61×7.18

5.2×0.030.21×0.764.8×0.449.3×76.8

6.3×0.020.8×2.40.46×0.453.4×7.3

6.5×0.070.46×0.870.81×0.398.48×3.1

一、口算。

0.2×4＝5×0.3＝0.3×100＝62.4÷1000＝

31.5×100＝0.01×0.6＝0.2×900＝0.18×30＝

0.4×6＝7×0.6＝0.6×1000＝0.22÷100＝

0.44×10＝0.06×0.07＝0.08×0.07＝0.13×2＝

二、列竖式计算。

0.78×0.80.49×6.70.12×0.490.1×11.9

5.6×0.080.28×7.40.9×0.970.95×30.6

21×0.91.4×0.450.54×4.70.41×1.59

0.76×0.80.71×4.23.7×0.444×0.39

一、口算。

0.1×9＝6×0.7＝0.008×100＝87.1÷10＝

51.9×100＝30×0.07＝0.005×200＝0.08×0.4＝

0.4×3＝2×0.4＝0.08×1000＝2.27÷1000＝

0.082×10＝50×0.4＝0.009×8＝1.9×7＝

二、列竖式计算。

0.97×0.090.73×2.10.46×0.10.94×7.77

3.4×0.50.36×0.116.9×8.75.2×1.72

8300×0.053.3×8.74.8×6.53.7×1.44

0.56×0.070.22×54.1×8.683.2×7.5

一、口算。

0.7×6＝3×0.3＝0.05×10＝0.091÷10＝

0.858×10＝0.02×0.6＝0.09×70＝1.2×0.8＝

0.6×4＝3×0.6＝0.001×10＝0.414÷10＝

10.3×100＝0.08×0.03＝0.008×30＝0.5×70＝

二、列竖式计算。

2.9×0.070.25×0.420.75×0.123.1×43.5

0.34×0.98.3×0.118.2×3.70.14×2.87