北师大版四年级数学下册第三单元小数乘法专项练习题30.docx
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北师大版四年级数学下册第三单元小数乘法专项练习题30
一、口算。
0.1×3＝3×0.2＝0.1×100＝3.27÷100＝
68×10＝30×0.08＝0.03×0.5＝2×50＝
0.1×7＝2×0.4＝0.08×10＝0.1÷100＝
68.3×10＝40×0.2＝0.001×6＝0.9×0.3＝
二、列竖式计算。
9.3×0.090.45×0.79.1×4.42.2×8.1
0.91×0.79.1×0.733.5×6.60.48×30.7
780×0.064.5×0.90.59×5.30.7×2.06
3.2×0.20.95×1.40.68×0.122.9×6
一、口算。
0.5×5＝9×0.7＝0.004×100＝0.29÷1000＝
72.6×10＝10×0.04＝0.2×80＝1.5×700＝
0.5×5＝3×0.9＝0.02×10＝0.541÷10＝
0.3×100＝0.4×0.5＝0.07×900＝0.5×4＝
二、列竖式计算。
0.69×0.088.8×3.31.9×9.84.9×82.4
4.6×0.59×0.114.7×0.869.8×62.2
4700×0.69.4×0.333.9×9.33.6×57
0.67×0.087.5×0.780.9×0.932.6×0.53
一、口算。
0.3×7＝5×0.4＝0.01×10＝0.953÷10＝
64.1×100＝0.9×0.2＝0.7×500＝0.15×0.5＝
0.6×5＝9×0.7＝0.05×1000＝80.5÷1000＝
5.57×10＝0.01×0.05＝0.002×0.4＝0.08×700＝
二、列竖式计算。
0.85×0.24.3×6.30.19×0.239.6×8.14
8.8×0.33.1×0.690.23×0.360.72×55.2
44×0.20.85×79.2×0.982.5×4.44
1.1×0.060.53×0.836.9×0.548.9×5.1
一、口算。
0.2×4＝5×0.7＝0.1×1000＝0.631÷100＝
0.436×10＝0.6×0.6＝0.01×600＝0.08×200＝
0.5×4＝2×0.7＝0.006×10＝0.401÷10＝
2.03×1000＝60×0.09＝0.09×0.7＝1.6×0.2＝
二、列竖式计算。
6.1×0.030.39×0.150.91×0.937.6×1.17
8.2×0.26.3×0.577.6×4.88.2×21
52×0.83.1×7.14.2×0.260.75×17.8
4.7×0.040.28×9.39.2×0.733.04×1.2
一、口算。
0.9×7＝4×0.6＝0.001×10＝0.694÷1000＝
23×100＝50×0.3＝0.6×200＝0.1×8＝
0.7×4＝6×0.6＝0.1×10＝0.442÷10＝
27.5×1000＝0.8×0.3＝0.06×6＝0.2×0.07＝
二、列竖式计算。
0.34×0.41.7×9.12.2×9.71.2×29.2
0.18×0.040.55×2.50.91×0.50.36×62.2
6100×0.090.81×2.70.35×5.41.6×80
1.2×0.38.2×68.1×0.3551.7×0.21
一、口算。
0.2×4＝6×0.7＝0.4×10＝2.26÷10＝
7.17×10＝2×0.02＝0.004×5＝0.4×40＝
0.3×6＝6×0.3＝0.8×100＝41.5÷100＝
0.953×10＝4×0.08＝0.8×500＝0.19×0.4＝
二、列竖式计算。
1.1×0.66.2×0.270.24×5.80.22×67.1
4.9×0.60.41×0.30.95×4.40.57×2.64
8.6×0.020.21×4.34×0.750.78×53.8
4.9×0.80.72×5.50.97×4.351.8×0.22
一、口算。
0.1×3＝6×0.4＝0.002×1000＝8.34÷1000＝
9.03×1000＝0.03×0.2＝0.7×500＝0.4×7＝
0.2×9＝8×0.3＝0.04×10＝0.444÷1000＝
0.43×1000＝0.5×0.02＝0.03×50＝0.8×800＝
二、列竖式计算。
0.33×0.094.4×9.41×0.736×61.4
0.91×0.44.9×0.639.7×6.70.77×3.45
79×0.20.6×0.148.9×9.26.2×2.14
8.9×0.034.6×0.150.97×5.181.7×0.3
一、口算。
0.9×2＝2×0.8＝0.7×10＝72.5÷100＝
64.7×1000＝0.05×0.09＝0.04×4＝0.17×0.09＝
0.7×7＝4×0.6＝0.06×100＝9.96÷1000＝
9.85×100＝0.09×0.02＝0.4×6＝0.16×0.03＝
二、列竖式计算。
6.9×0.90.13×0.89.2×0.58.5×4.41
0.46×0.040.34×1.70.76×9.40.24×79.7
430×0.099.8×0.828×0.270.23×14
0.11×0.80.37×94.9×0.421.85×3.3
一、口算。
0.7×6＝8×0.3＝0.9×1000＝0.554÷100＝
0.798×1000＝9×0.05＝0.004×40＝0.02×20＝
0.1×9＝9×0.7＝0.3×100＝0.257÷100＝
0.684×10＝4×0.5＝0.02×80＝0.07×3＝
二、列竖式计算。
0.97×0.82.5×80.8×0.870.14×34.5
5.5×0.40.57×0.229.7×3.18.8×1.19
3.1×0.064.2×3.30.68×0.720.39×7.37
0.29×0.069.1×0.250.43×0.1673.6×0.56
一、口算。
0.8×3＝2×0.9＝0.007×100＝0.86÷100＝
0.813×1000＝2×0.02＝0.5×4＝0.8×50＝
0.6×7＝5×0.7＝0.003×10＝0.173÷1000＝
44.5×10＝3×0.9＝0.9×6＝0.1×50＝
二、列竖式计算。
4.9×0.20.28×0.850.22×0.350.36×74.1
7.7×0.020.8×0.70.68×0.389.7×9.77
71×0.040.55×0.92.4×8.30.99×9.56
0.24×0.90.94×1.67.1×289×0.84
一、口算。
0.7×7＝2×0.6＝0.005×10＝7.75÷1000＝
38.5×100＝0.6×0.09＝0.005×9＝0.4×3＝
0.7×3＝9×0.3＝0.1×10＝0.622÷100＝
64.9×10＝0.1×0.08＝0.006×60＝0.07×30＝
二、列竖式计算。
2.8×0.40.5×9.79.2×7.90.69×81.5
7.7×0.069.5×0.420.99×0.213.2×1.43
9200×0.60.84×0.940.7×3.70.17×97.7
6.5×0.080.98×9.18.5×0.4128.9×6.8
一、口算。
0.9×5＝2×0.4＝0.001×100＝4.27÷1000＝
33.1×10＝0.2×0.6＝0.7×0.7＝1.9×0.6＝
0.1×3＝8×0.9＝0.6×10＝3.15÷10＝
0.026×1000＝0.05×0.02＝0.05×3＝0.18×5＝
二、列竖式计算。
0.58×0.35×0.478.8×6.92.7×9.54
2.9×0.25.9×6.52.7×4.50.38×16.8
0.31×0.080.45×0.560.5×9.16.3×92.4
0.33×0.30.74×0.550.51×0.2398.8×0.33
一、口算。
0.6×3＝8×0.9＝0.03×100＝6.99÷10＝
0.467×10＝0.08×0.03＝0.06×80＝1.1×2＝
0.9×7＝9×0.5＝0.8×10＝22.3÷100＝
23.2×1000＝0.04×0.03＝0.003×200＝0.01×9＝
二、列竖式计算。
0.58×0.060.97×4.22.1×3.70.79×32.6
0.28×0.060.64×4.11.3×0.610.53×89.2
54×0.034.8×0.316×8.60.68×8.42
0.17×0.80.28×0.720.84×6.552×0.14
一、口算。
0.5×7＝9×0.6＝0.003×100＝0.215÷100＝
7.48×1000＝0.5×0.07＝0.3×0.9＝0.8×0.4＝
0.7×7＝3×0.7＝0.8×100＝80.7÷1000＝
52.5×100＝10×0.04＝0.1×0.06＝1.1×0.02＝
二、列竖式计算。
0.56×0.020.14×0.453.4×0.790.61×3.98
6.4×0.073×5.14.4×9.54.5×73.4
240×0.70.92×0.950.83×0.330.54×9.41
0.81×0.084.8×8.82.7×2.226.4×0.44
一、口算。
0.5×9＝2×0.4＝0.3×1000＝0.836÷1000＝
0.204×10＝70×0.8＝0.002×7＝0.2×0.03＝
0.3×5＝3×0.6＝0.001×10＝50.6÷10＝
51.2×10＝8×0.03＝0.2×0.08＝0.03×9＝
二、列竖式计算。
7.6×0.96.9×3.16×8.60.69×9.14
0.12×0.30.84×0.860.88×0.347.8×3.41
0.71×0.84.8×7.49.7×0.16.2×3.53
4.2×0.096.9×4.95.3×4.37.28×0.71
一、口算。
0.8×3＝4×0.6＝0.08×100＝0.044÷100＝
3.99×10＝50×0.03＝0.007×0.04＝0.9×0.8＝
0.3×2＝6×0.6＝0.3×100＝0.673÷1000＝
92.3×1000＝0.6×0.4＝0.05×50＝1.6×0.8＝
二、列竖式计算。
0.74×0.88.7×80.64×30.66×5.06
0.85×0.30.89×3.27.6×0.680.47×86.7
590×0.96.4×5.55.8×7.50.91×19.9
2.1×0.62×0.440.59×4.47.11×0.94
一、口算。
0.4×4＝6×0.7＝0.009×1000＝0.06÷100＝
0.505×100＝7×0.09＝0.3×900＝1.1×7＝
0.8×2＝4×0.5＝0.2×10＝8.59÷10＝
0.58×1000＝40×0.04＝0.6×0.6＝2×3＝
二、列竖式计算。
0.98×0.064.2×7.50.91×0.366.1×9.3
0.61×0.022.5×9.30.63×4.64.7×8.48
0.35×0.041.5×4.90.34×0.530.9×50.6
0.98×0.70.88×0.491×5.96.12×9.4
一、口算。
0.2×2＝6×0.4＝0.03×10＝46.4÷100＝
1.33×1000＝60×0.4＝0.1×2＝0.08×20＝
0.7×7＝3×0.6＝0.3×1000＝0.438÷1000＝
3.12×100＝2×0.07＝0.01×80＝0.5×0.05＝
二、列竖式计算。
0.62×0.050.74×3.87.6×0.610.48×75.5
2.4×0.40.57×5.84.3×6.60.3×5.91
39×0.21.7×2.43.5×8.95.3×75.5
4.5×0.060.74×0.916.2×0.583.35×0.91
一、口算。
0.9×3＝6×0.5＝0.005×1000＝76.8÷100＝
97.5×1000＝4×0.7＝0.002×80＝0.15×0.6＝
0.3×4＝5×0.2＝0.7×100＝0.746÷10＝
87.6×10＝4×0.09＝0.001×8＝0.11×0.5＝
二、列竖式计算。
5.8×0.50.33×0.920.1×5.53.4×40.6
0.42×0.60.51×7.30.31×0.218.7×91
2.2×0.23.8×4.98.7×5.75.5×57.8
0.75×0.054.8×20.25×0.4286.3×3.6
一、口算。
0.2×8＝7×0.5＝0.007×10＝0.057÷10＝
14.8×100＝40×0.2＝0.7×0.09＝1.5×9＝
0.3×9＝8×0.7＝0.01×1000＝89.5÷10＝
0.25×1000＝0.7×0.03＝0.5×30＝0.08×0.02＝
二、列竖式计算。
3.4×0.090.18×0.830.18×4.50.71×21.5
0.62×0.041.3×0.979.8×4.75.5×1.11
7.9×0.51.4×0.343.2×4.30.84×2.44
0.98×0.40.18×2.54.7×7.83.53×3
一、口算。
0.8×9＝3×0.3＝0.4×1000＝1.64÷10＝
6.7×10＝0.9×0.5＝0.004×200＝2×0.9＝
0.4×3＝7×0.5＝0.02×10＝9.59÷100＝
1.41×1000＝7×0.06＝0.9×60＝1.7×0.4＝
二、列竖式计算。
8.8×0.20.33×8.81.2×0.787.6×1.96
0.68×0.062.2×95.3×2.80.73×93.5
6.8×0.40.81×0.450.79×0.296.7×47.2
9.5×0.30.14×70.83×0.2440.2×3.9
一、口算。
0.3×2＝8×0.8＝0.2×1000＝0.85÷10＝
0.766×1000＝50×0.08＝0.9×0.06＝0.6×900＝
0.6×5＝4×0.8＝0.6×10＝83.5÷10＝
0.162×100＝0.8×0.8＝0.03×70＝0.8×0.03＝
二、列竖式计算。
6.8×0.060.43×0.760.37×0.330.92×89.6
2.9×0.074.4×0.215.5×0.722.5×1.63
3400×0.050.59×0.925.5×0.420.22×7.84
0.28×0.030.21×4.60.51×8.99.26×3.5
一、口算。
0.3×9＝7×0.5＝0.002×1000＝39.6÷10＝
0.585×100＝0.7×0.07＝0.2×60＝0.11×40＝
0.6×7＝8×0.2＝0.009×1000＝75.4÷100＝
2.9×1000＝0.01×0.08＝0.003×0.9＝0.3×6＝
二、列竖式计算。
0.72×0.50.75×0.190.8×0.971.1×9.45
0.78×0.039.2×0.870.44×46.2×9.15
48×0.80.33×24×8.58.6×19.7
8.4×0.70.6×62.2×0.24.06×0.82
一、口算。
0.1×2＝3×0.2＝0.008×100＝7.38÷100＝
78.1×1000＝6×0.07＝0.1×0.03＝0.18×30＝
0.1×2＝5×0.7＝0.004×1000＝8.29÷10＝
0.839×10＝0.5×0.3＝0.01×20＝0.12×40＝
二、列竖式计算。
9.2×0.090.96×0.620.41×4.27.4×9.2
0.48×0.40.98×6.80.46×5.40.91×9.12
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