北师大版四年级数学下册小数乘法综合练习题28.docx

北师大版四年级数学下册小数乘法综合练习题28.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28

一、口算。

0.8×4＝5×0.4＝0.09×100＝92.9÷100＝

0.588×10＝2×0.04＝0.008×0.03＝0.07×0.05＝

0.4×2＝9×0.5＝0.05×10＝0.92÷1000＝

4.88×1000＝7×0.07＝0.5×3＝1.3×7＝

二、列竖式计算。

7.1×0.75.9×80.76×3.27.8×2.18

0.15×0.40.87×9.19.2×0.440.85×1.81

8.5×0.049.4×7.60.9×0.635.8×48.7

8.3×0.071.8×0.789.2×0.553.8×6.6

一、口算。

0.4×9＝8×0.9＝0.6×100＝85.1÷10＝

9.93×10＝0.1×0.5＝0.001×5＝0.06×60＝

0.3×5＝9×0.5＝0.003×10＝0.761÷10＝

0.234×1000＝0.4×0.08＝0.007×0.07＝0.03×0.04＝

二、列竖式计算。

0.72×0.077.9×2.40.33×2.70.84×2.25

5.7×0.70.98×0.263.5×0.974×6.36

6900×0.070.68×0.820.99×6.40.37×8.28

1.4×0.20.93×0.136.5×0.8516.1×0.78

一、口算。

0.9×4＝3×0.2＝0.3×10＝43.6÷1000＝

0.447×10＝0.07×0.8＝0.002×6＝0.18×6＝

0.1×6＝6×0.5＝0.001×1000＝4÷10＝

6.77×1000＝3×0.2＝0.04×500＝1.8×8＝

二、列竖式计算。

0.87×0.42.3×3.48.5×0.480.41×9.57

9.8×0.50.98×3.33.8×4.79×75.9

52×0.90.2×8.62.1×6.47.1×6.27

9.5×0.77×0.441.1×0.3445.2×8.9

一、口算。

0.1×6＝7×0.7＝0.001×100＝0.105÷1000＝

76.9×100＝4×0.8＝0.005×90＝0.07×3＝

0.3×7＝5×0.6＝0.08×1000＝8.05÷100＝

0.758×100＝0.8×0.03＝0.001×0.05＝0.08×0.8＝

二、列竖式计算。

3.8×0.77.6×0.131.8×0.360.99×4.49

0.81×0.86.1×0.780.37×6.70.25×21.5

2100×0.021.7×0.393.8×0.296.5×8.28

3.9×0.020.97×81.2×8.542.5×4.3

一、口算。

0.1×7＝4×0.9＝0.04×100＝0.54÷1000＝

0.934×1000＝0.09×0.05＝0.4×0.05＝0.11×9＝

0.7×8＝6×0.8＝0.002×100＝64.7÷100＝

2.76×100＝0.2×0.06＝0.08×80＝0.09×0.02＝

二、列竖式计算。

2.2×0.096.4×0.420.26×0.140.35×7.38

0.66×0.035.5×0.124.7×0.190.15×41.4

8.4×0.28.8×0.122.7×0.463.1×30.9

1.5×0.27×6.30.22×0.9691.5×0.17

一、口算。

0.4×6＝4×0.5＝0.08×10＝0.278÷10＝

1.9×1000＝8×0.05＝0.4×2＝1.6×9＝

0.5×3＝2×0.6＝0.4×10＝8÷10＝

20.1×10＝0.04×0.6＝0.01×0.8＝1.5×8＝

二、列竖式计算。

0.65×0.71.4×0.243.4×9.15.3×8.64

2.9×0.038.3×1.29.9×5.14.7×3.18

9.4×0.40.29×0.378.7×6.41.2×1.73

0.57×0.099.1×0.788.4×0.671.24×2.7

一、口算。

0.1×4＝7×0.6＝0.04×100＝0.962÷1000＝

9.72×10＝20×0.03＝0.3×0.9＝1.7×0.7＝

0.9×9＝4×0.7＝0.2×10＝0.797÷1000＝

59.7×1000＝60×0.2＝0.005×0.03＝0.01×20＝

二、列竖式计算。

7.5×0.020.53×0.781.5×3.46.1×82.5

8.1×0.90.46×0.340.79×0.580.34×40.9

950×0.70.44×16.6×5.70.97×8.89

0.38×0.48.6×9.54.3×6.73.23×0.25

一、口算。

0.7×4＝4×0.8＝0.006×100＝82.3÷1000＝

4×100＝0.08×0.4＝0.1×60＝0.6×400＝

0.6×8＝4×0.4＝0.1×10＝84.9÷1000＝

0.721×1000＝0.02×0.07＝0.008×6＝0.08×2＝

二、列竖式计算。

0.47×0.072.2×0.525.9×0.377.3×7.86

0.14×0.097.7×0.196×0.985.1×9.78

2.6×0.56.5×0.80.38×5.90.96×87.1

4.1×0.050.68×0.330.95×0.4378.6×0.14

一、口算。

0.6×9＝8×0.7＝0.1×10＝6.4÷10＝

24.1×1000＝0.5×0.7＝0.3×6＝0.1×9＝

0.9×7＝3×0.2＝0.006×1000＝36.7÷100＝

77.7×1000＝0.06×0.04＝0.007×900＝1.1×8＝

二、列竖式计算。

0.94×0.090.5×6.97.3×5.82.5×42.9

8.2×0.20.2×7.72.5×4.94.1×7.79

7.3×0.031.6×0.440.54×0.70.98×1.44

7.1×0.53.5×0.454.1×4.58.87×5.8

一、口算。

0.1×4＝6×0.8＝0.9×1000＝0.768÷1000＝

0.146×1000＝8×0.09＝0.5×3＝0.08×2＝

0.1×7＝3×0.5＝0.002×1000＝0.38÷1000＝

0.885×10＝9×0.07＝0.04×0.02＝0.05×7＝

二、列竖式计算。

3.5×0.060.69×2.80.49×0.789.1×1.74

6.3×0.70.78×0.278.1×0.670.46×53.7

180×0.096.3×2.62.6×95.1×49.1

7.3×0.90.15×0.150.87×0.5260.8×7.1

一、口算。

0.2×6＝4×0.3＝0.7×100＝0.026÷100＝

85.1×1000＝40×0.03＝0.04×50＝0.14×0.02＝

0.7×7＝2×0.3＝0.8×100＝52.5÷100＝

0.079×10＝30×0.08＝0.4×0.09＝0.09×4＝

二、列竖式计算。

0.28×0.52.7×0.470.15×0.713×9.51

0.59×0.060.39×0.620.37×0.190.75×38.7

0.77×0.079.3×0.368.3×0.531.2×2.61

7.9×0.080.66×2.20.98×0.2758.9×0.95

一、口算。

0.6×3＝3×0.2＝0.1×10＝0.98÷100＝

0.606×10＝0.2×0.8＝0.009×0.03＝0.8×70＝

0.7×8＝3×0.2＝0.005×100＝8.33÷1000＝

22.6×100＝10×0.4＝0.008×6＝0.2×0.3＝

二、列竖式计算。

5.5×0.020.8×60.41×0.290.99×7.4

8.6×0.042×6.48.6×1.75.5×1.13

48×0.070.33×70.97×0.630.95×31.9

5.2×0.057×0.337.2×7.35.59×0.16

一、口算。

0.7×4＝6×0.8＝0.008×10＝8.46÷1000＝

42.8×1000＝3×0.4＝0.03×0.6＝0.15×0.6＝

0.5×7＝4×0.6＝0.06×100＝6.29÷10＝

0.061×1000＝0.01×0.9＝0.6×0.04＝2×0.08＝

二、列竖式计算。

7.1×0.70.93×70.43×8.65.4×6.01

0.37×0.070.23×7.31.8×0.488.3×15.9

9.4×0.037.2×0.564×8.84.8×45.3

0.18×0.040.61×2.10.88×3.981.6×8.8

一、口算。

0.9×2＝7×0.7＝0.1×100＝91.6÷10＝

0.94×10＝0.3×0.02＝0.01×70＝1×0.2＝

0.1×6＝5×0.5＝0.3×100＝0.737÷10＝

3.49×10＝0.01×0.02＝0.07×3＝0.04×0.2＝

二、列竖式计算。

1.8×0.72.4×5.38.3×3.90.17×1.12

0.82×0.090.92×5.54.1×0.430.92×7.24

69×0.068.5×0.235×5.36.9×2.54

0.48×0.035.9×0.27.5×0.251.38×0.66

一、口算。

0.9×7＝9×0.2＝0.5×100＝0.858÷100＝

89.7×10＝70×0.06＝0.9×0.06＝0.2×4＝

0.7×2＝5×0.6＝0.5×100＝62.2÷100＝

0.854×1000＝4×0.3＝0.09×400＝0.5×0.08＝

二、列竖式计算。

0.81×0.90.39×0.140.54×1.92.3×84

0.79×0.94.9×3.70.49×0.510.8×44.6

37×0.060.59×1.70.47×0.590.43×22

0.32×0.60.49×4.87.5×4.69.4×7.5

一、口算。

0.5×2＝4×0.5＝0.007×100＝0.59÷100＝

97.8×100＝80×0.05＝0.06×0.04＝1.1×0.07＝

0.1×2＝6×0.7＝0.08×10＝28.5÷1000＝

0.77×10＝60×0.05＝0.7×900＝0.2×6＝

二、列竖式计算。

0.89×0.039.9×0.440.34×0.440.1×3.21

0.86×0.90.72×0.993.4×9.30.29×40.8

0.42×0.70.27×3.93.4×6.60.33×70.9

4.9×0.030.53×5.20.74×6.810.9×3.3

一、口算。

0.7×3＝5×0.5＝0.09×100＝1.71÷10＝

0.051×10＝0.09×0.03＝0.009×9＝0.12×9＝

0.4×9＝6×0.7＝0.03×100＝4.73÷1000＝

0.202×1000＝40×0.8＝0.03×3＝1.5×0.5＝

二、列竖式计算。

0.46×0.080.58×0.760.55×1.40.11×36.1

0.93×0.80.88×8.60.82×0.411.8×6.62

3100×0.092.7×8.34.4×4.20.29×89

2.9×0.060.11×9.60.55×0.45.14×0.92

一、口算。

0.8×6＝2×0.6＝0.002×100＝4.91÷100＝

6.7×10＝9×0.6＝0.008×50＝0.08×0.08＝

0.6×5＝2×0.4＝0.1×100＝0.472÷100＝

3.9×10＝40×0.2＝0.008×3＝1.8×0.3＝

二、列竖式计算。

0.81×0.080.44×2.65.9×0.271.6×36.1

0.88×0.083.5×9.80.86×10.85×5.62

0.83×0.20.34×0.422×0.838.8×7.06

0.81×0.40.41×3.13.4×7.21.33×8.6

一、口算。

0.6×6＝4×0.9＝0.05×1000＝73.5÷1000＝

44.2×10＝80×0.04＝0.6×3＝0.1×0.9＝

0.1×5＝2×0.7＝0.003×100＝72.1÷1000＝

0.562×10＝0.5×0.9＝0.07×5＝1.9×90＝

二、列竖式计算。

0.28×0.29.4×70.69×0.169.2×4.81

7.2×0.050.98×7.83.5×5.60.28×74.8

870×0.70.71×5.59.5×0.987.4×5.27

0.74×0.40.77×9.59×68.99×0.35

一、口算。

0.1×6＝6×0.6＝0.002×100＝0.501÷100＝

7.05×10＝2×0.08＝0.7×60＝0.1×7＝

0.2×3＝6×0.8＝0.04×10＝0.324÷100＝

0.2×100＝0.1×0.7＝0.7×0.02＝0.19×0.3＝

二、列竖式计算。

5.7×0.78.1×0.557×0.390.49×59

0.99×0.063.8×1.54.5×4.77.6×70.9

0.94×0.085.9×9.65×0.610.27×13.8

0.78×0.043.1×7.90.77×0.2513.7×0.69