北师大版四年级数学下册小数乘法综合练习题79.docx

北师大版四年级数学下册小数乘法综合练习题79.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79

一、口算。

0.5×6＝3×0.3＝0.3×1000＝0.65÷100＝

0.839×1000＝5×0.2＝0.05×0.02＝1.9×6＝

0.2×8＝6×0.3＝0.06×1000＝20.7÷10＝

0.167×100＝5×0.4＝0.8×0.02＝0.09×300＝

二、列竖式计算。

0.46×0.030.15×5.40.66×4.40.31×8.67

3.8×0.030.58×1.10.87×6.60.55×65.6

640×0.40.26×5.60.36×0.437.2×11.1

1.8×0.083.1×0.30.5×0.725.01×0.37

一、口算。

0.7×3＝8×0.6＝0.3×1000＝5.38÷1000＝

0.093×100＝5×0.2＝0.009×40＝0.2×600＝

0.3×3＝3×0.5＝0.1×10＝0.5÷100＝

8.33×100＝30×0.9＝0.008×30＝0.05×90＝

二、列竖式计算。

2.2×0.84.1×4.59.2×6.85.6×9.15

0.82×0.32.4×0.680.84×9.80.95×9.85

2.8×0.055.3×1.30.52×5.18.5×50.1

2.8×0.054.6×4.10.48×0.2467×0.79

一、口算。

0.2×7＝8×0.7＝0.07×100＝5.54÷100＝

22.5×100＝0.8×0.04＝0.1×0.7＝0.08×600＝

0.8×9＝4×0.5＝0.5×1000＝46.2÷10＝

8.68×100＝4×0.04＝0.7×50＝0.02×0.05＝

二、列竖式计算。

3.3×0.048.7×1.53.4×0.390.86×4.57

0.58×0.090.54×0.285.3×2.50.86×95.2

94×0.74.1×4.20.57×0.776.8×90.5

0.74×0.46.3×9.87.7×4.67.11×0.19

一、口算。

0.8×2＝7×0.5＝0.003×100＝74.2÷10＝

6.77×1000＝9×0.06＝0.1×4＝1.2×0.9＝

0.9×9＝4×0.5＝0.9×10＝86.1÷100＝

0.22×10＝90×0.07＝0.4×0.3＝0.5×0.7＝

二、列竖式计算。

7.2×0.60.27×6.85.9×9.84.2×81.9

0.23×0.065.3×7.70.3×8.22.9×7.7

9.9×0.037.6×70.69×0.268.1×45.3

7.5×0.73×7.46.1×0.831.1×9.9

一、口算。

0.3×5＝6×0.3＝0.06×10＝2.51÷1000＝

6.56×1000＝0.1×0.07＝0.09×0.8＝0.06×4＝

0.6×5＝6×0.6＝0.03×100＝2.3÷10＝

0.301×10＝40×0.6＝0.3×0.6＝0.2×300＝

二、列竖式计算。

3.5×0.40.84×8.10.41×5.50.66×83.4

2.4×0.33.7×0.560.55×0.580.68×8.96

4800×0.40.25×0.660.85×0.570.82×5.23

0.92×0.98.1×1.77×0.814.43×3.3

一、口算。

0.4×9＝2×0.6＝0.8×1000＝9.57÷100＝

0.71×1000＝2×0.5＝0.01×0.8＝1.2×90＝

0.1×7＝2×0.7＝0.2×100＝1.52÷10＝

8.3×1000＝80×0.07＝0.6×300＝0.03×500＝

二、列竖式计算。

5.1×0.50.65×0.327.4×0.299.5×4.14

0.41×0.058×0.580.51×0.36.5×1.79

6200×0.040.22×2.90.2×0.515.6×6.56

0.73×0.96.2×0.248.8×1.98.12×7.7

一、口算。

0.7×9＝5×0.4＝0.07×100＝68.4÷10＝

1.84×10＝50×0.05＝0.04×200＝0.5×0.5＝

0.8×2＝5×0.3＝0.08×1000＝90.1÷1000＝

0.04×100＝0.7×0.2＝0.5×0.04＝0.5×0.7＝

二、列竖式计算。

2.7×0.020.58×0.365.3×0.70.83×5.11

8.1×0.94×0.555.4×0.90.48×18.7

0.81×0.060.95×0.760.93×4.50.87×6.55

0.92×0.097.1×0.870.14×3.689.2×5.1

一、口算。

0.9×7＝4×0.9＝0.004×10＝48.5÷100＝

48.7×1000＝0.7×0.04＝0.7×0.7＝1.6×0.06＝

0.4×9＝6×0.5＝0.004×10＝0.375÷100＝

6.42×10＝0.7×0.03＝0.003×0.7＝0.03×800＝

二、列竖式计算。

0.56×0.030.93×44.8×0.851.6×4.94

7.6×0.090.78×4.40.77×0.890.62×10.2

28×0.20.76×8.40.26×2.40.42×3.27

9.3×0.65.1×0.898.8×0.156.09×8.6

一、口算。

0.4×7＝4×0.4＝0.01×100＝9.89÷1000＝

24.9×100＝1×0.09＝0.8×0.06＝1.9×800＝

0.8×8＝5×0.5＝0.06×100＝15÷10＝

0.341×10＝3×0.05＝0.003×0.5＝0.7×40＝

二、列竖式计算。

5.1×0.030.91×0.767.5×0.874.5×56.1

1.6×0.020.71×0.288.3×9.60.43×98.5

0.42×0.50.44×1.31.9×8.68.3×7.65

0.51×0.067.9×7.29.8×0.272.42×4.2

一、口算。

0.7×3＝8×0.5＝0.06×1000＝21.4÷10＝

9.43×1000＝90×0.9＝0.005×80＝0.15×200＝

0.6×7＝9×0.4＝0.5×100＝8.8÷10＝

41×1000＝0.09×0.2＝0.08×0.08＝0.15×2＝

二、列竖式计算。

0.14×0.44.3×1.90.98×0.810.63×63.2

5.7×0.097.5×4.60.69×7.10.62×7.87

6300×0.50.3×1.90.29×0.382.6×5.65

3.9×0.72.8×0.440.65×85.58×5.6

一、口算。

0.3×3＝4×0.4＝0.9×10＝75÷1000＝

0.928×10＝6×0.6＝0.09×5＝1×800＝

0.9×9＝7×0.8＝0.02×10＝0.058÷100＝

0.953×1000＝0.2×0.8＝0.04×0.02＝1.9×800＝

二、列竖式计算。

0.16×0.30.97×0.630.56×8.41.4×76

0.16×0.070.97×0.968.8×0.770.31×7.28

9.8×0.40.28×5.17.1×0.330.7×21.8

6.9×0.075.8×0.290.8×416.7×6

一、口算。

0.4×3＝5×0.5＝0.2×1000＝0.309÷10＝

58.2×100＝0.09×0.7＝0.008×0.07＝1.1×80＝

0.3×9＝9×0.9＝0.008×1000＝2.82÷100＝

0.878×1000＝0.4×0.08＝0.3×80＝0.5×50＝

二、列竖式计算。

9.7×0.99.3×0.996.7×0.97.5×48.4

5.2×0.30.72×2.59.3×0.460.96×33.7

6300×0.053.9×5.50.27×5.70.43×4.48

5.5×0.21.6×0.640.77×0.6658.7×0.92

一、口算。

0.9×2＝4×0.8＝0.1×10＝14.8÷100＝

0.45×1000＝0.08×0.06＝0.07×8＝1.7×200＝

0.8×6＝9×0.6＝0.04×100＝1.72÷1000＝

0.676×10＝0.02×0.02＝0.09×9＝0.2×0.7＝

二、列竖式计算。

9.5×0.061.9×0.910.71×0.930.37×7.7

8.7×0.070.58×0.390.48×8.30.91×9.56

4.1×0.85.9×6.20.39×0.281.3×4.22

3.9×0.080.13×0.830.64×3.773.1×5.1

一、口算。

0.5×2＝3×0.6＝0.002×10＝72.1÷100＝

34.9×1000＝20×0.6＝0.04×0.04＝1.1×500＝

0.1×2＝6×0.7＝0.05×1000＝0.29÷100＝

0.018×100＝0.01×0.07＝0.07×800＝0.04×50＝

二、列竖式计算。

0.17×0.020.73×0.750.45×0.383×8.8

0.11×0.070.96×2.61×0.117.3×67

12×0.30.99×0.890.95×0.231.4×4.43

0.49×0.40.22×2.67.2×0.538.75×0.43

一、口算。

0.9×2＝9×0.7＝0.06×10＝1.23÷1000＝

0.011×10＝6×0.4＝0.9×0.7＝0.01×900＝

0.7×9＝4×0.8＝0.1×1000＝0.217÷100＝

87.1×1000＝6×0.4＝0.002×80＝0.2×0.3＝

二、列竖式计算。

8.9×0.42.1×5.70.93×4.53.6×1.73

0.21×0.080.58×7.82.6×0.984.2×89.5

110×0.20.25×7.20.71×0.372.2×5.44

0.49×0.071×1.12.9×3.66.59×0.76

一、口算。

0.6×6＝3×0.2＝0.5×100＝0.602÷10＝

0.174×100＝70×0.04＝0.07×0.6＝0.2×0.3＝

0.3×5＝8×0.9＝0.003×100＝0.338÷10＝

5.1×100＝0.3×0.02＝0.007×9＝0.08×60＝

二、列竖式计算。

0.55×0.039.2×0.897.9×0.343.9×46.8

0.48×0.80.47×0.260.19×0.640.75×1.7

29×0.78×0.467.4×0.767.7×32.1

0.65×0.090.22×0.91.1×0.1585.9×0.17

一、口算。

0.6×7＝5×0.9＝0.07×10＝9.4÷10＝

49×100＝7×0.2＝0.4×0.08＝0.4×60＝

0.6×9＝6×0.9＝0.8×100＝0.247÷100＝

0.937×1000＝10×0.04＝0.009×6＝0.12×0.6＝

二、列竖式计算。

0.53×0.080.92×3.73.1×0.195.2×1.14

2.3×0.083×4.66.9×5.60.78×37.4

1500×0.078.9×0.623.4×88.8×9.34

2.2×0.40.76×0.330.37×0.454.5×8.9

一、口算。

0.4×6＝4×0.6＝0.09×1000＝0.832÷10＝

71.5×1000＝0.04×0.4＝0.006×9＝1.1×800＝

0.2×6＝8×0.8＝0.002×10＝0.192÷1000＝

0.53×100＝0.07×0.6＝0.008×0.3＝1.1×8＝

二、列竖式计算。

0.96×0.35.8×6.49.2×5.53×56

5.3×0.70.75×5.20.91×0.60.13×5.78

59×0.30.18×4.27.1×0.820.85×8.83

5.7×0.060.5×0.340.31×0.7195.2×0.35

一、口算。

0.4×6＝9×0.8＝0.009×1000＝15.2÷10＝

95.1×10＝6×0.5＝0.7×50＝0.9×0.7＝

0.9×7＝3×0.2＝0.008×10＝0.824÷1000＝

0.127×100＝0.07×0.9＝0.008×0.2＝0.7×0.04＝

二、列竖式计算。

4.5×0.21.9×0.863.7×0.71.4×2.16

8.3×0.026.1×0.235.5×7.50.12×27.8

0.13×0.050.41×5.10.24×2.19.2×5.35

2.7×0.070.65×2.10.97×0.646.06×4.1

一、口算。

0.6×5＝5×0.3＝0.007×10＝1.92÷1000＝

22.2×1000＝0.09×0.7＝0.001×7＝0.03×600＝

0.1×2＝7×0.7＝0.5×100＝6.85÷100＝

0.764×1000＝60×0.02＝0.1×0.3＝1.3×3＝

二、列竖式计算。

0.13×0.22.9×0.826.6×0.244.9×46.6

0.87×0.030.92×0.940.14×0.878.3×10.9

0.14×0.020.26×6.70.89×0.130.21×8.21

8.9×0.70.52×30.36×9.234.2×0.32