北师大版四年级数学下册小数乘法综合练习题41.docx

北师大版四年级数学下册小数乘法综合练习题41.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41

一、口算。

0.5×8＝7×0.9＝0.9×10＝1.02÷10＝

19.7×1000＝1×0.6＝0.02×4＝0.07×200＝

0.1×4＝2×0.4＝0.04×10＝68.3÷10＝

7.82×100＝5×0.03＝0.008×0.3＝1.5×3＝

二、列竖式计算。

0.69×0.76.1×2.51×8.88.4×94.8

0.92×0.080.84×0.69.8×9.30.24×72

9.9×0.40.67×4.40.11×0.825.1×19.2

9.2×0.50.24×0.40.5×0.818.05×8.6

一、口算。

0.2×5＝9×0.9＝0.09×1000＝1.65÷1000＝

99.5×10＝0.01×0.6＝0.006×0.06＝1.2×3＝

0.2×4＝5×0.3＝0.2×1000＝5.5÷1000＝

3.37×1000＝0.06×0.8＝0.04×60＝0.2×80＝

二、列竖式计算。

0.82×0.88.5×0.850.21×3.70.85×7.7

9.3×0.080.78×0.380.67×1.20.44×45.3

0.33×0.073.7×2.95.4×7.10.9×8.76

6.4×0.72.4×0.290.36×0.753.73×0.83

一、口算。

0.2×8＝7×0.9＝0.008×10＝0.059÷10＝

77.2×1000＝0.01×0.05＝0.04×7＝0.8×0.5＝

0.2×5＝5×0.6＝0.008×10＝6.02÷1000＝

0.618×1000＝0.08×0.8＝0.04×80＝2×5＝

二、列竖式计算。

0.35×0.34.4×0.130.59×0.529.4×6.34

4.9×0.070.99×1.70.92×0.680.26×11.9

1800×0.040.75×0.550.35×6.80.31×8.58

3.7×0.83.8×8.70.97×0.4557.8×0.33

一、口算。

0.7×9＝2×0.3＝0.4×10＝0.271÷100＝

6.24×100＝0.09×0.07＝0.009×0.09＝0.7×9＝

0.3×6＝7×0.8＝0.2×100＝0.223÷10＝

0.5×1000＝0.03×0.6＝0.02×0.08＝1.7×300＝

二、列竖式计算。

8.1×0.96×2.60.12×7.90.31×48

9.1×0.040.24×5.38.7×0.970.14×2.58

0.99×0.20.55×0.470.4×7.19.5×8.5

0.21×0.40.49×0.444.5×139.2×0.84

一、口算。

0.4×2＝4×0.6＝0.004×10＝45.7÷100＝

94.1×1000＝10×0.07＝0.004×700＝1.6×8＝

0.6×7＝8×0.7＝0.04×1000＝4÷10＝

84.1×10＝0.1×0.03＝0.09×400＝1.8×0.5＝

二、列竖式计算。

0.89×0.077.9×9.65×1.45×26.3

1.8×0.70.22×5.70.18×0.440.57×91.1

15×0.68.7×1.81.1×0.884.8×51.7

0.11×0.023.8×8.40.9×0.519.19×0.6

一、口算。

0.3×7＝3×0.2＝0.003×1000＝0.416÷10＝

8.55×10＝0.3×0.6＝0.09×500＝1.7×900＝

0.7×7＝6×0.2＝0.009×10＝9.79÷10＝

7.33×1000＝0.8×0.7＝0.09×0.07＝0.12×8＝

二、列竖式计算。

8.3×0.080.21×0.420.56×1.70.46×3.49

8.3×0.89.1×0.328.2×5.50.69×7.13

860×0.066.5×4.33.4×0.160.84×1.05

0.65×0.70.45×2.10.3×0.9131.1×3.8

一、口算。

0.3×2＝2×0.2＝0.003×10＝33.7÷10＝

4.91×1000＝0.02×0.02＝0.09×0.04＝0.15×0.6＝

0.6×2＝4×0.6＝0.2×1000＝0.732÷1000＝

0.446×10＝70×0.08＝0.8×500＝1.6×6＝

二、列竖式计算。

0.41×0.040.27×2.70.65×2.40.9×19.7

0.57×0.032×8.51.6×0.964.8×37.8

1.1×0.83.9×0.560.14×0.740.4×97.2

2.8×0.93.3×0.170.5×6.242.2×0.15

一、口算。

0.5×4＝8×0.3＝0.03×10＝0.61÷10＝

2.67×100＝20×0.09＝0.007×0.02＝1.5×800＝

0.9×4＝5×0.7＝0.01×100＝32÷100＝

0.425×100＝0.04×0.02＝0.05×50＝0.5×60＝

二、列竖式计算。

2.7×0.40.88×0.915.8×3.20.62×8.88

6.3×0.51.3×49.1×0.580.75×8.81

220×0.98.1×80.94×0.51×46

7.4×0.40.59×0.160.25×0.214.39×0.78

一、口算。

0.6×3＝5×0.5＝0.7×10＝17.9÷1000＝

81.8×1000＝4×0.5＝0.01×0.2＝0.01×6＝

0.8×9＝2×0.4＝0.9×100＝0.282÷100＝

9.11×10＝0.6×0.4＝0.2×50＝1.1×0.3＝

二、列竖式计算。

2.7×0.37.4×5.10.26×3.49.7×21.7

0.98×0.60.12×2.98.4×0.460.64×6.99

350×0.42.6×0.679.6×8.30.65×93.6

0.46×0.045.4×0.80.54×0.3477.8×5.7

一、口算。

0.1×6＝8×0.9＝0.7×100＝72.6÷100＝

0.951×10＝0.09×0.9＝0.009×2＝0.7×80＝

0.9×2＝4×0.2＝0.9×10＝78.5÷10＝

0.1×100＝0.08×0.3＝0.02×0.4＝0.09×8＝

二、列竖式计算。

0.83×0.024.9×0.620.44×0.619.3×66.2

0.94×0.50.17×6.70.58×0.340.14×4.06

0.25×0.59.4×3.31×0.880.4×8.24

0.35×0.038.5×1.10.98×0.694.86×0.7

一、口算。

0.9×2＝9×0.6＝0.004×10＝0.243÷100＝

31.4×10＝90×0.5＝0.08×0.05＝1.3×0.04＝

0.7×2＝4×0.5＝0.04×100＝5.24÷1000＝

0.235×100＝5×0.9＝0.005×0.09＝1.1×0.03＝

二、列竖式计算。

2.9×0.30.84×2.80.58×6.35.2×25.9

5.8×0.039.4×1.13.5×1.63.5×13

670×0.50.56×3.89.2×1.80.19×1.04

0.43×0.83.9×0.10.37×1.554.2×7.9

一、口算。

0.7×9＝7×0.9＝0.7×1000＝0.298÷10＝

4.99×10＝60×0.3＝0.006×20＝0.14×6＝

0.9×6＝4×0.7＝0.1×10＝93.2÷1000＝

0.788×10＝0.2×0.08＝0.3×70＝1.6×800＝

二、列竖式计算。

0.66×0.069.5×5.90.61×0.920.35×8.7

0.79×0.080.76×0.710.73×20.89×6.41

55×0.049.8×6.40.54×0.656.7×7.7

2.3×0.30.54×0.919.2×0.834.33×7.2

一、口算。

0.5×4＝5×0.6＝0.05×1000＝6.92÷100＝

0.738×100＝80×0.6＝0.6×0.09＝0.12×0.05＝

0.4×5＝8×0.9＝0.4×1000＝0.911÷10＝

79.8×1000＝0.3×0.03＝0.004×70＝0.4×0.02＝

二、列竖式计算。

0.62×0.070.96×1.65.1×0.666.7×7.52

0.92×0.86.9×0.160.18×4.94.1×7.7

2.4×0.70.64×0.979.9×0.957×48

0.83×0.70.9×77.7×0.639.53×5.6

一、口算。

0.9×7＝9×0.6＝0.004×100＝4.59÷10＝

0.766×1000＝7×0.9＝0.005×8＝0.08×0.3＝

0.2×7＝6×0.9＝0.6×10＝52.2÷1000＝

0.143×100＝1×0.02＝0.2×0.5＝0.2×6＝

二、列竖式计算。

0.96×0.61.1×0.348.6×4.80.24×9.16

0.59×0.033.4×0.72.5×0.520.24×21

9.1×0.30.61×8.67.8×0.660.13×6.34

2.3×0.063.5×3.30.2×0.787.5×0.21

一、口算。

0.9×4＝4×0.9＝0.003×1000＝0.992÷1000＝

0.52×1000＝0.05×0.03＝0.009×0.02＝0.4×0.02＝

0.2×6＝9×0.9＝0.7×10＝9.09÷1000＝

0.947×1000＝0.9×0.06＝0.007×60＝0.9×0.05＝

二、列竖式计算。

1.8×0.95.1×4.41.4×0.112.6×23.3

0.82×0.76.2×7.53.4×0.540.87×1.77

0.23×0.059.5×0.750.78×0.153.4×6.05

5.4×0.093×5.18.4×0.1344.8×0.1

一、口算。

0.6×3＝4×0.5＝0.009×100＝18.3÷1000＝

11.5×1000＝0.1×0.04＝0.3×0.04＝0.16×0.5＝

0.9×2＝8×0.6＝0.3×10＝0.123÷1000＝

0.413×1000＝30×0.07＝0.4×20＝0.15×0.07＝

二、列竖式计算。

0.61×0.57.5×6.50.41×0.198×28.5

9.3×0.098.6×0.60.79×4.60.25×8.35

620×0.28.9×0.379.2×0.53.7×93.1

0.23×0.040.65×0.234×0.6778.6×7.8

一、口算。

0.5×4＝9×0.2＝0.002×10＝6.76÷1000＝

1.5×1000＝10×0.03＝0.04×300＝0.01×900＝

0.8×7＝4×0.6＝0.005×1000＝0.175÷100＝

95.5×10＝60×0.03＝0.004×0.06＝0.5×0.9＝

二、列竖式计算。

0.84×0.50.85×1.80.28×0.465.4×6.39

1.4×0.50.87×0.247.4×4.40.13×2.41

8.3×0.092.5×7.60.67×0.430.44×2.6

8.1×0.030.62×0.320.35×1.54.51×0.52

一、口算。

0.1×4＝2×0.6＝0.7×100＝0.145÷100＝

0.542×100＝0.04×0.07＝0.01×60＝0.19×0.5＝

0.5×8＝6×0.6＝0.01×1000＝0.715÷10＝

66.9×100＝10×0.8＝0.09×0.9＝0.17×0.06＝

二、列竖式计算。

0.52×0.028.4×1.87.9×8.91.3×5.75

0.43×0.036.1×8.90.91×3.15.4×5.75

97×0.070.76×0.528.9×0.250.95×9.19

0.84×0.60.98×0.940.9×3.763.9×9.7

一、口算。

0.4×9＝5×0.4＝0.03×10＝7.91÷100＝

3.5×1000＝20×0.03＝0.04×0.09＝0.3×0.9＝

0.2×2＝9×0.7＝0.1×10＝0.13÷10＝

2.44×100＝3×0.9＝0.8×0.2＝0.18×3＝

二、列竖式计算。

0.24×0.45.7×5.40.44×0.377×25.2

5.9×0.053.2×0.190.69×7.70.63×9.23

82×0.090.81×3.30.9×0.42.5×7.06

0.17×0.040.1×9.12.9×0.5780.2×5.1

一、口算。

0.1×7＝3×0.4＝0.4×10＝48.4÷100＝

58.8×1000＝0.04×0.3＝0.05×90＝1.2×0.7＝

0.1×2＝8×0.8＝0.009×100＝0.872÷1000＝

64.4×10＝0.08×0.8＝0.003×800＝1.3×0.02＝

二、列竖式计算。

0.37×0.071.4×0.185.4×20.21×7.46

0.69×0.055.5×8.59.3×0.780.31×4.51

0.95×0.54.9×0.746.6×8.37.5×20.3

0.91×0.71.1×0.454.9×0.2517.6×4.2