北师大版四年级数学下册小数乘法综合练习题71.docx

北师大版四年级数学下册小数乘法综合练习题71.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71

一、口算。

0.4×9＝4×0.2＝0.3×100＝44.1÷100＝

3.34×10＝10×0.02＝0.6×4＝1.8×3＝

0.8×8＝6×0.7＝0.02×100＝1.17÷10＝

0.943×100＝0.05×0.2＝0.009×0.03＝0.2×0.02＝

二、列竖式计算。

3.9×0.32.5×7.70.6×0.490.6×8.88

0.68×0.98.1×0.470.67×1.90.98×28.4

4700×0.040.53×0.684.2×0.220.7×6.06

6.6×0.069.1×0.320.54×0.9966.9×0.67

一、口算。

0.3×4＝4×0.7＝0.4×1000＝7.41÷1000＝

0.613×100＝0.04×0.05＝0.1×60＝0.06×8＝

0.5×9＝5×0.4＝0.04×1000＝0.487÷1000＝

1.62×10＝90×0.5＝0.001×0.07＝0.3×800＝

二、列竖式计算。

0.26×0.90.24×7.96.7×0.985.1×3.75

0.29×0.40.19×0.770.82×0.65.5×7.7

4400×0.092.1×30.82×5.21.2×61.7

6.8×0.091.7×0.590.7×0.764.96×0.88

一、口算。

0.9×3＝3×0.7＝0.04×100＝74.1÷1000＝

14.2×1000＝0.02×0.9＝0.004×30＝0.06×40＝

0.2×9＝2×0.3＝0.07×10＝0.985÷100＝

0.48×1000＝7×0.04＝0.007×0.7＝1×0.7＝

二、列竖式计算。

0.52×0.030.76×0.957.1×0.810.97×2.34

3.1×0.030.51×32.1×0.299.3×51.8

0.25×0.69×0.870.51×0.430.62×49.6

6.7×0.070.86×0.492.8×3.49.23×3.4

一、口算。

0.1×3＝8×0.6＝0.04×100＝2.97÷100＝

0.202×1000＝3×0.5＝0.9×60＝0.06×0.04＝

0.1×7＝4×0.9＝0.05×10＝0.985÷1000＝

0.43×1000＝0.4×0.05＝0.1×300＝0.07×0.6＝

二、列竖式计算。

2.1×0.023×0.850.93×3.70.76×81.6

5.7×0.87.5×0.310.45×0.80.67×5.13

45×0.90.68×3.30.99×0.432.1×6.56

2.9×0.87.4×5.64.1×0.141.8×0.35

一、口算。

0.6×2＝8×0.3＝0.8×100＝9.53÷1000＝

6.7×1000＝8×0.2＝0.1×90＝0.02×0.7＝

0.5×4＝2×0.9＝0.07×100＝0.727÷1000＝

45.2×1000＝0.06×0.06＝0.009×20＝1.9×0.7＝

二、列竖式计算。

8.6×0.50.35×0.260.78×2.11.2×77.3

7.5×0.22.3×5.92.8×9.10.78×48.5

1100×0.40.25×5.19.4×0.540.29×8.53

4.6×0.94.9×0.120.43×1.740.6×1.5

一、口算。

0.5×6＝5×0.6＝0.005×100＝89.4÷1000＝

5.3×100＝0.09×0.2＝0.006×40＝0.2×0.05＝

0.4×8＝5×0.4＝0.01×10＝0.996÷100＝

30.2×10＝0.06×0.04＝0.006×0.04＝0.6×8＝

二、列竖式计算。

7.3×0.060.81×4.60.61×6.40.25×34.1

5.6×0.082.7×0.870.33×0.380.85×40.8

6200×0.020.43×2.20.62×0.160.95×65.7

0.94×0.58.7×0.524.5×2.35.66×0.32

一、口算。

0.6×6＝2×0.6＝0.2×10＝16.9÷10＝

57.9×100＝0.08×0.8＝0.009×80＝1.6×2＝

0.1×2＝5×0.5＝0.02×100＝83.1÷10＝

0.6×1000＝1×0.09＝0.5×40＝0.04×7＝

二、列竖式计算。

7.6×0.83.9×1.60.7×6.20.28×7.81

2.8×0.067.2×1.46.7×0.585.1×5.43

470×0.060.63×11.3×4.62.7×61.9

0.18×0.098.4×7.84.5×3.487×0.17

一、口算。

0.7×3＝5×0.7＝0.09×10＝34.2÷10＝

0.99×10＝60×0.8＝0.04×800＝0.4×0.7＝

0.4×9＝5×0.7＝0.007×100＝74.7÷1000＝

9.4×1000＝4×0.06＝0.6×2＝1.5×30＝

二、列竖式计算。

0.21×0.50.44×0.197.3×0.321.7×92.6

0.55×0.089.4×0.279.7×0.680.79×5.59

24×0.81.1×0.323.3×0.980.88×6.59

2.6×0.027.2×0.161.4×0.228.6×5.9

一、口算。

0.8×4＝8×0.4＝0.04×10＝35.7÷100＝

2.44×1000＝20×0.05＝0.02×200＝0.9×700＝

0.2×4＝4×0.2＝0.1×100＝0.632÷1000＝

2.07×10＝0.05×0.3＝0.009×0.09＝1.4×4＝

二、列竖式计算。

1.5×0.020.45×0.777.2×0.149.6×3.1

4.4×0.54×7.53.3×0.120.91×95.9

0.69×0.27.7×4.10.4×0.691.5×11.9

1.7×0.030.85×0.436.6×0.782.3×8.1

一、口算。

0.7×3＝6×0.9＝0.008×10＝0.197÷1000＝

51.2×10＝10×0.06＝0.01×700＝0.4×0.2＝

0.3×3＝9×0.4＝0.007×100＝0.592÷10＝

0.476×10＝0.5×0.03＝0.005×4＝1.5×3＝

二、列竖式计算。

7.7×0.027×9.20.23×0.650.44×82.4

0.25×0.062.2×0.770.26×0.260.95×9.84

450×0.070.16×0.49.9×0.790.36×10.1

4.5×0.40.37×0.43×9.524.9×0.49

一、口算。

0.1×8＝3×0.9＝0.06×100＝17.9÷100＝

2.14×10＝0.9×0.07＝0.3×400＝0.04×3＝

0.4×4＝5×0.4＝0.07×100＝1.7÷1000＝

7.36×10＝0.4×0.2＝0.004×0.7＝0.06×700＝

二、列竖式计算。

0.84×0.088.4×34.3×0.131×2.41

6.6×0.90.38×4.28.2×0.110.36×59.9

7100×0.40.46×0.320.22×0.610.62×7.02

6.3×0.038×0.166.8×0.9710.1×0.72

一、口算。

0.3×2＝2×0.7＝0.003×1000＝0.548÷10＝

0.426×10＝20×0.2＝0.7×7＝0.3×8＝

0.7×2＝8×0.2＝0.9×100＝77÷100＝

2.99×1000＝0.04×0.3＝0.008×8＝0.04×30＝

二、列竖式计算。

0.35×0.40.61×0.580.89×9.57.4×51.6

0.51×0.041.6×2.80.28×0.679.9×9.16

99×0.030.33×8.50.42×1.80.76×28.3

3.1×0.030.23×0.127.5×1.241.5×2.1

一、口算。

0.4×9＝8×0.9＝0.009×10＝52.6÷1000＝

80.1×100＝50×0.2＝0.005×200＝0.05×700＝

0.1×6＝8×0.4＝0.05×1000＝72.2÷10＝

0.905×10＝0.4×0.5＝0.004×0.03＝0.01×6＝

二、列竖式计算。

6.1×0.086.4×4.69.9×6.80.28×26.6

1.1×0.020.71×0.280.78×3.47.4×37.3

73×0.070.92×7.92.3×6.49.8×8.04

5.6×0.060.81×0.345.7×0.618.7×2.4

一、口算。

0.8×4＝3×0.5＝0.005×1000＝86.2÷1000＝

8.37×1000＝0.2×0.5＝0.05×0.3＝0.02×70＝

0.3×3＝6×0.5＝0.4×10＝36.8÷100＝

15.2×100＝0.04×0.5＝0.07×0.08＝0.12×7＝

二、列竖式计算。

7.3×0.090.29×5.17.1×0.681.3×12.8

8.4×0.70.82×4.66.8×0.561.6×8.69

230×0.48×4.67.9×30.36×92.9

0.74×0.77.9×1.30.83×0.9115.6×9.9

一、口算。

0.1×3＝4×0.3＝0.003×100＝0.478÷1000＝

88.3×1000＝3×0.9＝0.9×5＝0.06×4＝

0.9×5＝8×0.9＝0.001×10＝0.89÷1000＝

2.78×1000＝5×0.06＝0.4×4＝0.01×0.2＝

二、列竖式计算。

7.4×0.047.4×2.20.63×0.120.66×3.45

7.1×0.080.69×1.70.69×0.649×21.1

43×0.085.5×0.890.67×0.656×5.68

0.67×0.078×0.610.64×0.5414.3×4.6

一、口算。

0.3×4＝5×0.8＝0.005×1000＝24÷1000＝

6.16×10＝90×0.06＝0.2×900＝0.11×300＝

0.6×6＝9×0.3＝0.09×10＝0.218÷10＝

0.334×1000＝0.3×0.09＝0.09×2＝0.07×0.04＝

二、列竖式计算。

0.53×0.050.16×2.48.4×0.492.1×41.1

0.33×0.090.26×0.130.18×0.770.15×4.73

43×0.90.53×5.97.8×0.154×48.9

5.9×0.70.65×2.20.65×0.798.86×0.43

一、口算。

0.3×9＝2×0.5＝0.01×10＝0.328÷100＝

29.6×1000＝5×0.7＝0.002×30＝0.1×0.08＝

0.1×7＝9×0.2＝0.005×100＝30.8÷1000＝

7.82×100＝70×0.7＝0.3×90＝1.2×8＝

二、列竖式计算。

0.13×0.079.3×0.80.93×6.80.78×6.68

0.58×0.48.2×2.40.36×3.70.2×48.1

910×0.30.62×0.428.3×0.490.5×6.96

2.6×0.074.3×1.90.1×9.455.4×0.51

一、口算。

0.6×5＝8×0.4＝0.5×10＝0.749÷100＝

4.19×10＝70×0.6＝0.2×2＝0.4×0.2＝

0.7×6＝4×0.5＝0.9×1000＝68.4÷1000＝

6.11×10＝0.02×0.5＝0.001×400＝0.18×800＝

二、列竖式计算。

8.3×0.038.3×5.48.6×0.264.9×2.23

0.23×0.34.8×5.30.24×7.18.6×5.31

4800×0.99.5×0.590.52×1.22.1×18.9

4.3×0.34.5×0.380.29×0.861.09×8

一、口算。

0.7×8＝6×0.2＝0.002×100＝8.33÷1000＝

30.7×10＝0.4×0.09＝0.02×0.2＝1.7×400＝

0.1×8＝3×0.6＝0.005×100＝6.98÷10＝

72.3×100＝6×0.6＝0.8×0.08＝0.8×300＝

二、列竖式计算。

7.7×0.024.1×0.783.7×7.48.9×8.8

5.1×0.30.32×0.89×6.60.98×4.41

9600×0.70.65×8.47.8×0.391×4.58

0.27×0.061.2×0.640.23×3.366.1×0.96

一、口算。

0.2×2＝6×0.4＝0.005×100＝5.14÷10＝

5.98×1000＝0.07×0.6＝0.4×6＝0.19×8＝

0.5×3＝5×0.5＝0.2×100＝1.68÷10＝

0.592×100＝0.8×0.09＝0.9×800＝0.7×0.09＝

二、列竖式计算。

3.3×0.90.32×0.168.3×8.20.36×3.74

0.67×0.54.2×0.410.45×65×4.63

74×0.60.47×6.15.5×0.990.69×3.37

2.5×0.040.92×3.43.5×0.831.23×0.42