北师大版四年级数学下册小数乘法综合练习题45.docx

北师大版四年级数学下册小数乘法综合练习题45.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45

一、口算。

0.4×7＝6×0.7＝0.06×10＝0.244÷1000＝

96.5×100＝0.03×0.07＝0.008×700＝1.7×200＝

0.6×5＝8×0.9＝0.02×1000＝52.6÷100＝

6.04×1000＝0.9×0.5＝0.005×0.02＝0.4×0.03＝

二、列竖式计算。

0.45×0.060.18×0.830.74×28.9×63.6

0.68×0.045.6×1.82.2×1.35.8×63.2

2400×0.030.68×2.97.6×7.83.9×4.81

0.33×0.086.1×0.247.9×0.9983.1×6.3

一、口算。

0.4×9＝4×0.7＝0.002×10＝0.304÷10＝

0.617×10＝0.7×0.08＝0.5×0.9＝0.01×0.09＝

0.2×3＝3×0.3＝0.01×100＝0.558÷100＝

0.958×1000＝0.7×0.07＝0.006×30＝1.9×0.04＝

二、列竖式计算。

6.1×0.070.1×1.81.8×0.251.1×1.49

0.92×0.20.79×0.918.9×4.10.23×9.85

640×0.030.85×0.270.94×0.980.97×47

0.66×0.030.93×4.60.85×3.341.5×0.95

一、口算。

0.8×7＝3×0.6＝0.04×10＝6.74÷10＝

37.2×100＝0.09×0.09＝0.8×0.09＝0.15×0.2＝

0.4×2＝4×0.8＝0.2×10＝8.2÷1000＝

8.29×100＝0.02×0.4＝0.06×50＝1.6×0.2＝

二、列竖式计算。

0.48×0.080.15×61.3×1.30.84×12.4

0.62×0.048×5.40.7×7.10.93×4.47

2.4×0.089.5×0.152.1×4.70.58×3.36

6.2×0.020.51×0.850.76×0.25.17×0.87

一、口算。

0.8×7＝6×0.2＝0.8×10＝8.93÷100＝

7.92×1000＝0.06×0.8＝0.007×600＝0.06×0.02＝

0.4×9＝4×0.5＝0.009×10＝0.487÷10＝

9.92×1000＝0.8×0.4＝0.1×0.3＝0.18×400＝

二、列竖式计算。

7.1×0.090.31×0.760.95×1.89.7×69.4

7.8×0.20.25×0.344.1×7.90.83×3.35

5.8×0.95.7×0.583.4×6.70.6×41.6

6.7×0.086.4×27.3×8.65.98×2.4

一、口算。

0.7×8＝6×0.8＝0.8×1000＝3.55÷1000＝

0.104×10＝0.1×0.07＝0.9×0.02＝0.14×0.07＝

0.2×6＝8×0.7＝0.007×10＝83.7÷100＝

0.51×10＝9×0.5＝0.07×6＝1.8×700＝

二、列竖式计算。

4.8×0.052.2×0.659.1×8.92.2×92.9

0.91×0.082.7×0.972.4×3.90.57×4.74

5500×0.050.78×1.30.44×0.966.5×37.7

4.8×0.054.4×1.74.1×0.3226.8×0.55

一、口算。

0.9×6＝3×0.6＝0.2×1000＝0.492÷10＝

5.95×10＝2×0.5＝0.003×0.09＝0.17×0.7＝

0.7×6＝8×0.4＝0.003×10＝0.106÷100＝

97.5×10＝1×0.09＝0.04×0.06＝2×4＝

二、列竖式计算。

0.79×0.55.9×0.940.19×7.20.54×74.6

3.5×0.28.2×0.10.72×0.711.9×7.35

1.9×0.065.7×9.50.13×7.19.9×5.48

0.55×0.093.8×1.60.3×0.6448.1×0.29

一、口算。

0.6×4＝4×0.3＝0.8×1000＝0.23÷100＝

0.929×1000＝80×0.6＝0.5×90＝0.11×0.6＝

0.4×6＝7×0.2＝0.06×1000＝15.1÷100＝

0.195×100＝4×0.04＝0.006×900＝1.6×5＝

二、列竖式计算。

0.84×0.060.59×9.73.9×2.90.36×83.9

0.33×0.70.23×0.153.8×32.8×53.8

16×0.090.29×0.740.68×9.37.4×9.15

0.77×0.090.79×9.73.7×0.72.79×3.8

一、口算。

0.8×4＝4×0.6＝0.001×1000＝48.7÷100＝

3.85×10＝50×0.09＝0.008×5＝0.16×0.02＝

0.8×5＝3×0.6＝0.09×10＝0.918÷10＝

0.459×100＝0.01×0.07＝0.009×0.5＝0.03×700＝

二、列竖式计算。

9.3×0.083×0.710.81×8.19.1×10.6

0.97×0.23.6×0.293.7×0.220.1×34.7

1700×0.099.9×0.823.2×0.350.65×6.08

0.11×0.70.74×0.60.51×6.97.72×2.9

一、口算。

0.8×8＝2×0.3＝0.004×100＝86.2÷100＝

1.47×100＝90×0.8＝0.04×60＝0.01×0.6＝

0.7×9＝4×0.5＝0.006×100＝2.99÷1000＝

5.55×100＝5×0.09＝0.005×0.5＝0.9×0.02＝

二、列竖式计算。

1.6×0.83×3.30.28×0.243×28.3

0.35×0.030.57×0.835.1×4.76.3×1.19

2.5×0.68.9×0.360.8×0.56.9×25.7

5.2×0.080.5×0.637.2×0.6512.2×0.64

一、口算。

0.8×7＝4×0.9＝0.002×100＝4.6÷100＝

0.989×100＝1×0.7＝0.08×80＝1.9×0.03＝

0.8×2＝9×0.8＝0.01×100＝0.873÷1000＝

0.039×1000＝0.6×0.06＝0.02×80＝1.9×0.08＝

二、列竖式计算。

0.49×0.50.55×7.21.2×0.420.23×5.04

0.88×0.087×7.53.5×3.18.8×91.7

430×0.091.9×10.66×7.64.6×4.56

0.82×0.40.24×0.531.4×4.71.63×3.3

一、口算。

0.3×5＝9×0.7＝0.07×1000＝17.8÷10＝

0.519×100＝0.04×0.08＝0.8×4＝1.5×7＝

0.5×7＝2×0.7＝0.04×100＝1.65÷10＝

60.2×1000＝0.04×0.9＝0.01×200＝0.2×0.5＝

二、列竖式计算。

7.5×0.090.46×9.56.1×0.540.7×18.7

6.8×0.030.65×7.69.9×69.1×47.2

0.56×0.027×0.910.58×3.50.15×1.88

0.66×0.090.81×54.2×8.148×5.7

一、口算。

0.7×3＝8×0.2＝0.6×10＝9.27÷1000＝

0.779×100＝2×0.9＝0.7×300＝0.05×8＝

0.3×3＝3×0.8＝0.005×100＝33.8÷1000＝

0.72×1000＝1×0.08＝0.003×2＝0.02×7＝

二、列竖式计算。

5.8×0.020.22×0.475.3×0.470.69×77

0.92×0.80.34×6.32.3×0.250.92×51

3500×0.055.5×0.734.3×0.870.21×97.2

7.6×0.040.84×1.47.7×0.179.52×5.5

一、口算。

0.8×7＝9×0.3＝0.3×100＝47.9÷100＝

6.61×1000＝0.3×0.2＝0.005×4＝0.01×90＝

0.8×2＝7×0.2＝0.07×1000＝0.772÷10＝

0.255×1000＝10×0.07＝0.03×400＝0.08×0.2＝

二、列竖式计算。

0.47×0.038.9×0.321.3×0.594.2×94.7

4.5×0.050.21×0.30.37×1.50.82×13.1

0.83×0.052.3×0.919.4×6.30.35×94.2

0.48×0.88.9×0.840.18×8.885.4×7.5

一、口算。

0.9×4＝5×0.6＝0.005×10＝39.6÷1000＝

0.97×10＝0.01×0.8＝0.3×400＝0.2×0.2＝

0.7×4＝6×0.8＝0.08×1000＝0.029÷100＝

0.824×1000＝9×0.6＝0.007×0.05＝0.09×900＝

二、列竖式计算。

0.87×0.68.9×0.460.2×6.58.5×68.7

4.2×0.039.5×3.72.1×0.950.62×96.9

0.74×0.97.5×0.31×0.110.93×2.1

6.5×0.060.84×0.830.62×4.34.37×9

一、口算。

0.7×4＝2×0.2＝0.002×10＝7.74÷1000＝

0.017×1000＝80×0.4＝0.002×0.9＝0.06×0.06＝

0.8×6＝3×0.4＝0.007×100＝0.851÷1000＝

32.1×1000＝5×0.6＝0.07×0.6＝0.09×7＝

二、列竖式计算。

8.9×0.020.36×0.79.1×0.326.8×77.6

6.3×0.025×0.792.5×4.30.71×42.1

8500×0.60.53×0.675.4×5.42.7×47.3

0.56×0.96.8×6.30.11×0.3559.7×6.3

一、口算。

0.4×8＝7×0.9＝0.7×100＝3.62÷1000＝

9.07×1000＝8×0.04＝0.003×0.02＝0.7×9＝

0.1×7＝8×0.6＝0.008×10＝0.118÷10＝

3.61×10＝0.08×0.04＝0.08×2＝0.17×0.02＝

二、列竖式计算。

9.3×0.60.7×9.80.46×0.519.2×58.3

0.71×0.48.7×2.90.23×0.110.12×5.42

6.9×0.50.86×0.570.55×0.50.31×2.31

0.69×0.088.8×0.190.28×4.296.4×6.3

一、口算。

0.7×3＝3×0.2＝0.001×10＝0.301÷1000＝

5.95×100＝90×0.04＝0.001×70＝0.19×80＝

0.7×3＝8×0.9＝0.4×1000＝0.98÷1000＝

0.51×1000＝0.1×0.6＝0.6×20＝0.19×0.04＝

二、列竖式计算。

2.1×0.070.47×7.30.8×0.320.51×72.3

3.1×0.045.6×6.50.69×10.31×78.7

6.5×0.020.95×0.910.15×0.685.5×4.76

9.7×0.070.8×6.73.4×93.05×0.73

一、口算。

0.4×7＝9×0.7＝0.06×1000＝60.9÷10＝

8.9×1000＝0.2×0.2＝0.008×90＝1.9×0.05＝

0.3×6＝8×0.4＝0.8×10＝36.7÷100＝

0.372×10＝0.04×0.8＝0.05×0.09＝1.3×700＝

二、列竖式计算。

0.29×0.96.6×1.70.53×0.410.66×58.2

0.99×0.80.85×0.230.7×0.650.58×2.45

0.96×0.88.1×50.62×0.43.7×3.13

2.4×0.85.2×0.665.5×56.81×0.26

一、口算。

0.3×5＝9×0.2＝0.009×10＝0.33÷1000＝

0.822×1000＝0.7×0.3＝0.002×0.06＝1.7×0.08＝

0.2×4＝2×0.7＝0.4×10＝5.65÷1000＝

73.8×100＝0.08×0.08＝0.05×60＝1.8×90＝

二、列竖式计算。

0.78×0.095.7×0.340.16×0.717.6×6.67

4.2×0.48.1×0.510.59×4.40.51×39.6

6300×0.070.35×4.10.52×8.40.98×51

5.3×0.79.6×0.250.3×3.94.74×1.6

一、口算。

0.8×7＝7×0.9＝0.005×1000＝12÷10＝

56.5×10＝0.6×0.5＝0.4×600＝0.6×90＝

0.2×8＝6×0.2＝0.003×1000＝8.7÷10＝

0.317×100＝10×0.04＝0.001×80＝2×0.4＝

二、列竖式计算。

0.24×0.40.55×2.44.4×9.44.8×50.9

0.12×0.26.7×39.7×1.85.9×3.94

0.35×0.69.9×8.40.51×0.880.32×24.4

0.95×0.57.8×5.10.89×7.84.46×5.4