北师大版四年级数学下册小数乘法综合练习题145.docx

北师大版四年级数学下册小数乘法综合练习题145.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145

一、口算。

0.3×8＝7×0.5＝0.8×1000＝0.048÷10＝

0.781×10＝90×0.6＝0.008×0.5＝1.4×800＝

0.6×3＝6×0.9＝0.4×1000＝0.354÷10＝

95.6×1000＝5×0.6＝0.005×0.03＝0.04×7＝

二、列竖式计算。

0.82×0.041.7×6.40.73×0.392.6×26.4

0.82×0.90.19×0.872.4×0.330.48×36.8

4100×0.46.2×0.93.3×8.86×4.74

4.8×0.82.7×0.597.9×0.7589.9×8.9

一、口算。

0.9×3＝5×0.8＝0.1×10＝0.197÷10＝

7.35×100＝8×0.4＝0.002×0.05＝1.4×0.7＝

0.1×6＝4×0.4＝0.6×10＝0.9÷100＝

1.23×1000＝5×0.08＝0.008×600＝0.6×300＝

二、列竖式计算。

0.42×0.089.6×3.27.3×7.10.23×23.8

9.3×0.70.97×8.10.22×6.60.27×5.12

0.66×0.84.8×0.849.9×2.70.51×8.76

2.1×0.060.12×3.15×2.17.05×2.1

一、口算。

0.9×6＝8×0.9＝0.5×1000＝7.12÷1000＝

0.83×100＝0.1×0.07＝0.09×0.05＝0.14×0.03＝

0.1×9＝7×0.8＝0.5×100＝8.75÷1000＝

2.85×1000＝0.08×0.4＝0.05×20＝0.8×0.08＝

二、列竖式计算。

0.47×0.87×2.21.3×0.10.7×20.2

0.78×0.070.76×0.860.86×0.558.4×14.4

99×0.30.27×9.22.2×0.713.7×7.08

0.93×0.058.7×3.13.2×4.866.2×0.67

一、口算。

0.3×3＝9×0.4＝0.7×1000＝51.5÷1000＝

0.58×1000＝10×0.3＝0.009×0.5＝0.05×300＝

0.3×3＝4×0.2＝0.4×10＝58.8÷100＝

0.79×10＝80×0.06＝0.5×70＝1.5×6＝

二、列竖式计算。

0.13×0.020.46×0.270.89×0.140.34×1.77

2.2×0.80.73×7.58.9×0.40.91×64

9200×0.085.1×0.166.8×5.95.3×5.74

2.8×0.050.31×5.40.58×4.24.52×9.5

一、口算。

0.7×5＝6×0.9＝0.8×1000＝4.67÷1000＝

8.5×10＝0.05×0.02＝0.007×2＝0.2×0.6＝

0.1×7＝3×0.2＝0.05×1000＝32.8÷10＝

33.8×100＝0.04×0.2＝0.001×50＝1.9×70＝

二、列竖式计算。

4.3×0.41×6.43.3×5.90.42×82.6

0.58×0.048×3.10.55×0.485.8×1.33

860×0.050.18×0.220.17×6.20.72×9.64

0.96×0.020.35×0.370.39×0.6348×6.9

一、口算。

0.9×2＝2×0.3＝0.3×10＝9.64÷10＝

37.3×100＝3×0.02＝0.1×0.6＝0.2×7＝

0.5×3＝7×0.9＝0.008×10＝0.142÷100＝

0.62×10＝70×0.5＝0.02×0.06＝0.17×20＝

二、列竖式计算。

7.6×0.087.2×7.60.81×0.690.33×74.9

8.3×0.90.72×5.20.67×0.498.2×5.41

7700×0.054.7×3.42.2×2.10.89×6.55

7.7×0.64.1×7.90.76×0.348.72×0.41

一、口算。

0.8×5＝5×0.8＝0.8×1000＝0.01÷100＝

0.41×10＝2×0.02＝0.6×0.9＝0.15×200＝

0.3×3＝7×0.3＝0.007×1000＝2.89÷1000＝

0.869×10＝60×0.08＝0.007×70＝1.7×70＝

二、列竖式计算。

1.8×0.097.9×0.495.2×94×1.33

0.11×0.020.5×0.581.7×0.16.8×7.38

38×0.091×0.735.3×4.79.6×40.3

0.63×0.041.3×0.358.4×0.751.06×0.94

一、口算。

0.3×2＝8×0.5＝0.007×100＝9.34÷10＝

0.787×10＝8×0.07＝0.02×60＝0.06×0.7＝

0.3×7＝4×0.6＝0.3×10＝0.265÷10＝

5.5×1000＝2×0.06＝0.5×0.5＝0.07×3＝

二、列竖式计算。

6.1×0.70.8×0.138.8×9.10.32×84

0.45×0.020.26×0.80.68×8.18.9×54.9

83×0.98.9×4.70.85×0.354.3×2.88

0.99×0.080.52×8.30.18×0.4853.8×1.9

一、口算。

0.9×2＝7×0.3＝0.005×10＝0.526÷10＝

0.016×100＝4×0.08＝0.009×9＝0.09×0.8＝

0.9×3＝2×0.9＝0.02×1000＝9.67÷10＝

2.67×100＝0.03×0.03＝0.2×0.4＝0.14×400＝

二、列竖式计算。

0.99×0.40.74×6.93.6×0.370.42×2.39

7.2×0.031.6×4.60.81×2.70.7×5.85

22×0.90.8×7.70.72×3.10.26×4.95

6.3×0.80.93×0.590.11×8.44.66×0.31

一、口算。

0.4×2＝8×0.6＝0.4×1000＝8.23÷100＝

24×1000＝10×0.6＝0.06×0.8＝1.2×0.7＝

0.9×4＝2×0.9＝0.007×100＝6.17÷100＝

0.993×100＝0.09×0.4＝0.09×0.8＝1.6×0.04＝

二、列竖式计算。

8.3×0.094.7×6.74.3×0.116.8×9.29

9.8×0.20.96×3.35.4×8.60.93×13.8

35×0.67.5×9.92.1×0.46.8×1.68

5.2×0.90.72×9.90.62×6.89.66×0.16

一、口算。

0.2×6＝3×0.3＝0.006×10＝72.5÷10＝

25.6×1000＝6×0.06＝0.01×50＝0.16×40＝

0.5×9＝4×0.8＝0.03×1000＝19.5÷10＝

5.46×1000＝0.08×0.05＝0.009×8＝1.2×0.8＝

二、列竖式计算。

0.25×0.070.83×0.628.5×8.70.9×5.3

3.3×0.84.3×0.580.5×5.62.6×9.61

8700×0.40.85×0.640.37×9.58.2×78.9

3.8×0.076.4×4.88.9×0.629.13×9.4

一、口算。

0.7×8＝2×0.2＝0.03×100＝14÷1000＝

23.6×1000＝80×0.2＝0.2×600＝0.07×40＝

0.1×7＝2×0.4＝0.06×10＝0.304÷10＝

2.16×10＝0.03×0.07＝0.02×30＝0.06×0.07＝

二、列竖式计算。

0.23×0.70.73×8.10.32×0.926.2×45.1

6.9×0.068.9×0.258.7×0.40.45×6.13

580×0.46.7×3.95.6×0.949.4×7.9

0.29×0.27.3×0.780.37×0.1974.9×0.95

一、口算。

0.4×9＝8×0.7＝0.004×100＝0.227÷1000＝

0.625×10＝10×0.5＝0.02×0.4＝0.15×400＝

0.8×9＝6×0.6＝0.8×10＝1.39÷100＝

0.462×10＝5×0.9＝0.009×0.04＝0.4×0.9＝

二、列竖式计算。

0.86×0.53.3×3.80.63×0.61.7×6.38

4.6×0.41.5×5.34.5×0.538×4.71

1400×0.031.8×5.30.94×8.70.19×52.3

0.49×0.090.36×2.30.73×0.478.78×5.3

一、口算。

0.6×9＝6×0.8＝0.5×1000＝6.9÷1000＝

18.1×100＝0.2×0.07＝0.06×0.05＝0.1×0.6＝

0.1×7＝5×0.4＝0.9×1000＝4.3÷10＝

0.936×100＝0.03×0.9＝0.01×0.8＝0.07×8＝

二、列竖式计算。

0.46×0.090.63×90.37×40.96×91.5

1.4×0.20.65×0.110.58×0.640.59×45.8

2600×0.082.7×5.97.6×0.830.45×64.9

3.5×0.020.22×40.88×0.288.72×0.25

一、口算。

0.5×8＝3×0.7＝0.005×100＝25.4÷1000＝

7.93×10＝20×0.8＝0.008×800＝0.14×0.06＝

0.6×2＝8×0.6＝0.003×1000＝74.6÷10＝

22.7×10＝0.06×0.02＝0.6×7＝0.07×60＝

二、列竖式计算。

7.3×0.030.98×4.50.8×6.16.1×9.09

6.1×0.020.33×0.395×85.7×36.5

24×0.96.9×4.20.88×6.63.2×70.1

2.4×0.35.1×0.597.3×2.115×9.5

一、口算。

0.1×3＝4×0.2＝0.009×100＝0.24÷1000＝

0.36×10＝0.05×0.5＝0.4×3＝1.9×9＝

0.6×6＝8×0.3＝0.05×10＝6÷10＝

22.5×100＝50×0.3＝0.004×40＝0.3×0.6＝

二、列竖式计算。

9.2×0.030.19×0.850.15×0.510.39×50.7

2.4×0.047×0.736.2×0.170.44×43.2

610×0.98.6×8.42.9×0.90.41×90.4

1.8×0.80.54×67.3×0.19.57×1.2

一、口算。

0.2×3＝4×0.9＝0.007×1000＝9.67÷100＝

4.53×10＝0.3×0.4＝0.6×200＝1.5×400＝

0.7×8＝8×0.4＝0.002×100＝0.443÷100＝

0.42×10＝0.9×0.05＝0.2×0.3＝0.08×0.7＝

二、列竖式计算。

6.6×0.050.31×51.1×8.80.51×5.01

3.6×0.70.84×2.90.46×7.10.87×4.16

0.66×0.020.52×5.92.6×88.5×9.82

9.9×0.077.5×4.10.83×0.5169.7×0.93

一、口算。

0.5×3＝8×0.9＝0.005×1000＝5.63÷10＝

63.5×100＝10×0.06＝0.007×0.3＝0.5×0.6＝

0.7×9＝7×0.3＝0.007×10＝0.663÷1000＝

0.909×10＝0.05×0.2＝0.3×0.08＝0.18×30＝

二、列竖式计算。

0.99×0.027.3×6.60.92×0.584.6×6.01

0.28×0.80.2×0.550.41×0.416.3×24.7

460×0.080.44×0.990.37×5.41.3×4.3

0.29×0.20.14×9.20.38×0.561.18×0.36

一、口算。

0.8×9＝6×0.8＝0.02×10＝6÷100＝

0.241×100＝0.05×0.5＝0.002×0.9＝1.4×4＝

0.6×4＝8×0.5＝0.002×1000＝51.2÷1000＝

0.274×1000＝0.09×0.05＝0.01×70＝1.5×0.7＝

二、列竖式计算。

0.43×0.060.67×0.320.79×0.470.43×1.67

1.1×0.034×8.30.12×3.82.9×70.6

4800×0.024.1×0.959.5×7.90.74×6.81

0.44×0.080.19×5.10.65×6.18.31×4.7

一、口算。

0.6×7＝2×0.7＝0.008×10＝0.171÷100＝

9.08×1000＝90×0.03＝0.004×0.09＝1.5×6＝

0.7×6＝9×0.3＝0.08×100＝0.686÷1000＝

58.6×10＝4×0.05＝0.05×0.03＝0.17×7＝

二、列竖式计算。

0.74×0.092.6×1.45.5×0.290.31×5.69

0.79×0.60.44×0.510.17×90.65×93.3

0.73×0.24.8×3.95.7×9.30.46×89.6

0.78×0.80.99×1.68.2×0.336.28×0.15