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.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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