北师大版四年级数学下册小数乘法综合练习题128.docx

北师大版四年级数学下册小数乘法综合练习题128.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128

一、口算。

0.6×4＝7×0.6＝0.009×10＝28.9÷100＝

7.3×10＝0.3×0.6＝0.2×20＝0.8×500＝

0.7×5＝5×0.8＝0.003×10＝0.857÷1000＝

50.5×100＝5×0.04＝0.2×700＝1.8×0.09＝

二、列竖式计算。

0.22×0.036.1×1.70.49×3.45.6×5.53

1.5×0.085.2×7.30.72×0.226.5×21.6

3.1×0.50.98×0.646.1×0.474.8×21.3

0.18×0.26.7×0.235.9×0.765.85×8.3

一、口算。

0.1×7＝9×0.7＝0.07×100＝40.8÷1000＝

1.45×100＝5×0.05＝0.1×0.3＝0.1×2＝

0.3×4＝3×0.5＝0.02×1000＝0.824÷100＝

4.53×10＝4×0.05＝0.02×60＝1.7×0.5＝

二、列竖式计算。

6.3×0.090.87×0.42.1×8.22.1×2.1

0.21×0.030.52×1.76.2×0.93.8×95.7

1.2×0.73×0.660.47×0.982.1×2.13

6.5×0.090.59×0.87.6×8.363.3×0.8

一、口算。

0.3×6＝4×0.8＝0.08×1000＝29.1÷1000＝

0.548×100＝7×0.07＝0.04×30＝0.02×600＝

0.5×8＝7×0.5＝0.04×100＝0.842÷1000＝

30.3×100＝70×0.05＝0.03×500＝0.17×8＝

二、列竖式计算。

1.5×0.50.38×0.630.43×1.10.74×9.59

5.9×0.050.47×0.647.1×1.41.7×1.02

0.61×0.90.44×6.34.5×50.77×1.13

0.97×0.020.99×0.910.12×9.451.4×0.48

一、口算。

0.2×2＝4×0.3＝0.1×10＝26÷1000＝

0.132×1000＝50×0.8＝0.002×0.9＝0.2×0.3＝

0.1×8＝8×0.3＝0.6×100＝0.774÷10＝

0.77×1000＝70×0.04＝0.004×0.03＝0.01×0.04＝

二、列竖式计算。

0.65×0.30.94×7.20.46×0.470.95×1.97

0.96×0.027.7×3.40.99×0.720.22×48

0.52×0.050.67×0.319.2×0.750.64×64.8

0.29×0.032.6×1.10.77×7.774.6×0.27

一、口算。

0.4×8＝6×0.3＝0.07×100＝2.06÷100＝

82.1×1000＝0.08×0.4＝0.04×0.02＝0.2×0.02＝

0.9×3＝8×0.8＝0.4×1000＝0.992÷100＝

0.74×100＝3×0.05＝0.003×8＝0.14×300＝

二、列竖式计算。

0.14×0.070.78×5.21.1×0.668.2×6.65

1.6×0.090.12×6.40.91×0.60.27×6.44

0.87×0.090.98×1.50.89×2.50.39×1.41

2.1×0.79.2×5.30.8×0.231.59×6.1

一、口算。

0.9×6＝7×0.6＝0.008×10＝6.6÷100＝

0.36×1000＝0.03×0.06＝0.002×3＝1.1×8＝

0.2×9＝3×0.5＝0.06×10＝61.7÷100＝

10.3×1000＝60×0.2＝0.3×0.9＝0.1×0.9＝

二、列竖式计算。

0.38×0.80.89×4.70.13×0.656.9×24.9

0.48×0.20.9×0.522.2×60.89×98.7

9900×0.40.39×0.783.7×5.21.1×14.6

3.7×0.023.3×2.69.8×5.193.3×6.8

一、口算。

0.3×6＝6×0.8＝0.7×1000＝8.77÷10＝

34.7×100＝0.2×0.9＝0.005×30＝0.01×0.05＝

0.5×7＝2×0.6＝0.07×10＝5.45÷1000＝

3.8×1000＝90×0.02＝0.03×0.6＝0.07×8＝

二、列竖式计算。

4.4×0.30.27×4.10.87×0.927.6×2.27

0.46×0.50.79×0.980.92×0.953.5×9.61

0.49×0.056.7×0.881.6×2.40.96×16.1

7.2×0.050.82×0.810.12×5.573.5×0.61

一、口算。

0.3×2＝7×0.8＝0.2×1000＝0.755÷100＝

66.8×1000＝0.06×0.6＝0.2×0.02＝0.14×0.09＝

0.9×5＝9×0.8＝0.4×1000＝7.36÷1000＝

18.1×10＝4×0.7＝0.02×5＝0.16×70＝

二、列竖式计算。

3.6×0.88×5.55×0.114.3×70.6

9.6×0.33.2×3.50.33×3.40.67×15.6

8500×0.060.14×0.694.3×0.351.4×73.4

0.35×0.088.3×0.473.1×7.492.1×1.1

一、口算。

0.2×4＝5×0.6＝0.08×100＝80.2÷10＝

71.3×1000＝0.01×0.03＝0.03×60＝0.05×0.3＝

0.7×8＝9×0.5＝0.003×10＝7.98÷10＝

0.594×100＝0.6×0.09＝0.01×600＝0.08×60＝

二、列竖式计算。

5.4×0.52.6×7.90.35×9.10.77×4.51

6.4×0.024.1×0.243.8×8.50.32×7

7.3×0.040.26×0.684.3×0.738.2×8

2.7×0.055.6×0.290.23×1.12.47×0.31

一、口算。

0.7×4＝8×0.6＝0.003×1000＝5.82÷100＝

13.4×10＝0.04×0.04＝0.2×0.7＝0.16×90＝

0.9×4＝8×0.5＝0.06×100＝7.3÷1000＝

0.047×10＝4×0.02＝0.05×0.6＝0.11×0.3＝

二、列竖式计算。

0.95×0.21.2×0.814.5×0.716.5×6.41

0.82×0.060.7×5.10.93×6.50.83×2.75

4900×0.085.1×5.90.47×0.915.9×5.72

4.1×0.48×0.897.2×7.29.52×0.22

一、口算。

0.2×2＝9×0.8＝0.002×1000＝27.7÷100＝

5.8×100＝2×0.07＝0.04×0.08＝0.09×0.8＝

0.7×8＝3×0.9＝0.04×10＝17.9÷10＝

0.158×1000＝0.8×0.9＝0.02×0.5＝1.2×70＝

二、列竖式计算。

7.3×0.99.1×0.872.7×1.38.2×3.02

9.2×0.077.2×0.564.5×0.474.8×1.18

26×0.20.47×0.711.3×0.617.5×32.3

6.2×0.50.98×5.60.86×0.156.72×1

一、口算。

0.6×2＝2×0.8＝0.5×10＝0.88÷100＝

0.425×1000＝90×0.06＝0.8×0.05＝0.5×0.7＝

0.1×8＝8×0.4＝0.1×1000＝4.89÷100＝

0.87×1000＝2×0.6＝0.3×0.6＝0.11×30＝

二、列竖式计算。

0.69×0.90.64×0.879×3.61.3×90.6

0.48×0.040.98×0.159.4×0.449.9×3.49

0.78×0.031.5×0.680.92×20.22×63.1

0.34×0.030.64×0.290.6×0.199.22×4.4

一、口算。

0.5×9＝2×0.3＝0.004×100＝7.36÷100＝

0.79×10＝7×0.8＝0.5×800＝0.08×4＝

0.6×7＝9×0.7＝0.01×10＝44.2÷100＝

0.058×10＝1×0.9＝0.002×0.02＝0.18×0.09＝

二、列竖式计算。

4.9×0.40.79×4.36×1.31.5×2.87

0.69×0.070.13×9.22.5×3.24×1.06

710×0.020.2×0.190.88×0.870.36×38.7

8.8×0.70.16×7.98.7×7.23.92×5.2

一、口算。

0.4×6＝6×0.4＝0.8×100＝3.33÷100＝

96.3×100＝20×0.4＝0.007×40＝0.06×20＝

0.1×7＝7×0.6＝0.07×100＝59.7÷1000＝

20.1×1000＝0.01×0.5＝0.006×0.08＝1.8×0.9＝

二、列竖式计算。

6.5×0.63.9×6.80.43×4.70.2×3.87

6.8×0.90.13×3.35.7×0.263.3×10

2100×0.087.3×2.80.69×0.970.11×83.7

2.7×0.065.1×1.90.16×5.947.3×0.76

一、口算。

0.6×6＝6×0.4＝0.02×10＝0.341÷1000＝

0.882×100＝30×0.06＝0.005×0.9＝0.07×0.05＝

0.9×9＝8×0.6＝0.004×1000＝7.39÷10＝

19.1×10＝4×0.3＝0.3×900＝0.07×60＝

二、列竖式计算。

0.41×0.025.1×0.340.98×0.250.38×89.6

0.77×0.70.46×90.16×3.37.5×73.5

0.29×0.040.43×0.768.5×0.510.59×97.1

0.78×0.080.74×7.34.9×5.655.9×0.66

一、口算。

0.8×7＝8×0.8＝0.01×1000＝9.08÷100＝

0.491×10＝1×0.07＝0.007×6＝0.2×0.03＝

0.4×2＝2×0.4＝0.001×1000＝0.282÷10＝

0.675×10＝0.04×0.06＝0.01×4＝0.17×0.04＝

二、列竖式计算。

0.78×0.90.65×9.18.9×0.360.32×28.8

0.11×0.060.12×3.82.9×6.90.52×19.5

7200×0.32.7×0.280.28×0.153.2×76

0.75×0.057.9×0.476×0.919.54×1.4

一、口算。

0.5×5＝8×0.9＝0.8×100＝2.61÷1000＝

0.052×100＝90×0.8＝0.009×0.5＝0.02×200＝

0.3×9＝8×0.7＝0.4×10＝0.752÷10＝

0.349×10＝0.1×0.02＝0.002×7＝1.5×500＝

二、列竖式计算。

0.17×0.62.1×0.431.2×0.140.9×73.6

0.42×0.050.86×7.80.86×6.87.7×6.31

6.6×0.040.5×20.95×4.30.23×43.5

8.8×0.070.96×7.40.82×0.5554.4×4.6

一、口算。

0.7×5＝9×0.2＝0.009×1000＝1.23÷1000＝

0.458×10＝0.6×0.5＝0.03×7＝0.7×0.3＝

0.7×8＝7×0.5＝0.09×100＝0.8÷10＝

3.37×1000＝0.01×0.3＝0.001×0.2＝1.3×0.07＝

二、列竖式计算。

9.6×0.056.2×8.87.1×34.3×1.43

7.3×0.030.21×0.982.9×8.60.29×10.9

0.44×0.94.4×7.64.4×0.494.2×2.37

4.4×0.035.5×8.10.88×52.87×4.6

一、口算。

0.7×3＝2×0.2＝0.09×100＝0.02÷100＝

3.31×100＝0.9×0.8＝0.9×6＝0.19×200＝

0.6×5＝4×0.5＝0.1×1000＝0.89÷100＝

55.1×100＝0.8×0.9＝0.02×200＝0.3×500＝

二、列竖式计算。

0.12×0.95.9×0.229.8×6.90.67×5.71

9.1×0.60.3×0.656.4×99.7×4.1

690×0.56.3×8.50.41×0.644.2×78.9

2.9×0.78.9×0.336.4×5.865.4×0.46

一、口算。

0.1×3＝3×0.6＝0.004×1000＝5.68÷1000＝

7.86×10＝6×0.04＝0.01×700＝0.09×0.9＝

0.3×7＝2×0.2＝0.07×1000＝2.58÷10＝

0.077×10＝0.5×0.04＝0.1×0.5＝0.07×0.02＝

二、列竖式计算。

0.52×0.070.98×0.437.7×78×73

5.9×0.069.1×0.895.8×0.520.82×12.8

2.7×0.034.5×0.910.92×0.930.3×6.2

3.7×0.20.41×0.190.54×0.6884.3×0.5