北师大版四年级数学下册小数乘法综合练习题121.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121.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121
一、口算。
0.9×5=9×0.8=0.07×10=0.247÷1000=
37.8×100=8×0.4=0.003×0.9=1.5×0.03=
0.1×3=4×0.8=0.003×100=36.2÷10=
0.113×1000=80×0.2=0.001×0.04=0.08×0.02=
二、列竖式计算。
6.5×0.30.52×1.20.5×0.520.31×1.68
8.5×0.040.27×0.587.3×0.770.46×4.18
710×0.43.4×0.422.2×3.94.3×34.8
0.16×0.090.98×1.80.69×0.7437.8×0.57
一、口算。
0.9×9=7×0.5=0.4×10=0.79÷10=
0.085×10=5×0.7=0.6×0.9=0.2×0.8=
0.6×7=8×0.6=0.2×1000=5.9÷10=
0.317×10=6×0.2=0.02×7=0.03×0.9=
二、列竖式计算。
1.9×0.094.3×5.11.3×0.150.62×2.04
0.17×0.096.9×20.88×46.7×3.08
3100×0.66.3×4.50.4×0.721×17.9
2.9×0.50.77×0.928.6×4.26.66×0.59
一、口算。
0.8×2=3×0.9=0.5×1000=35.4÷1000=
8.96×1000=0.07×0.04=0.003×70=1.9×90=
0.1×6=8×0.9=0.04×10=3.6÷10=
1.91×100=5×0.09=0.09×7=2×0.5=
二、列竖式计算。
0.76×0.82.3×47.9×4.50.63×6.07
0.49×0.70.5×5.20.65×2.39.6×45.6
9.1×0.50.7×0.618.4×3.97.5×90.8
3.3×0.50.33×0.830.87×0.2565.4×2
一、口算。
0.8×7=4×0.4=0.4×100=9.68÷100=
88.1×10=4×0.07=0.7×200=0.19×9=
0.5×5=7×0.5=0.05×100=90.2÷1000=
0.849×100=0.02×0.9=0.06×4=0.17×50=
二、列竖式计算。
6.3×0.090.87×0.550.18×2.13.4×14.2
2.6×0.090.9×4.50.51×1.56.4×58.5
5.6×0.95×9.52.2×0.290.23×13
4.8×0.52.8×8.98×0.6147.7×0.41
一、口算。
0.9×5=3×0.7=0.006×100=10.2÷10=
0.269×100=0.3×0.07=0.01×0.07=0.17×600=
0.1×5=3×0.3=0.04×1000=67.9÷10=
82×10=20×0.02=0.003×5=1.6×0.3=
二、列竖式计算。
1.9×0.091.4×65.8×1.31.4×37.8
3.6×0.072.5×8.72.8×0.110.92×5.82
0.74×0.63.9×0.253.6×0.140.43×50
2.7×0.097.3×3.87.7×4.896.4×0.17
一、口算。
0.7×7=7×0.5=0.8×10=8.74÷10=
0.92×1000=0.02×0.3=0.009×80=1.6×60=
0.6×9=4×0.6=0.006×1000=0.73÷100=
0.763×10=10×0.09=0.007×7=1.4×90=
二、列竖式计算。
7.6×0.035×4.10.61×0.854.6×94.2
7.2×0.51.7×9.88.1×4.60.87×7.72
890×0.47.7×0.860.95×9.60.76×6.17
7.2×0.62.1×5.21×0.5831.8×0.34
一、口算。
0.2×7=4×0.2=0.06×1000=7.27÷1000=
9.6×100=0.1×0.3=0.6×0.5=0.02×0.06=
0.1×6=3×0.9=0.006×1000=75.7÷1000=
53.6×100=6×0.04=0.01×0.8=0.11×0.6=
二、列竖式计算。
0.13×0.44.1×0.210.91×4.90.21×4.99
1.6×0.050.37×0.555×0.350.48×3.56
0.93×0.050.2×0.580.84×1.70.78×22.5
1.1×0.045.5×8.53.2×0.725.78×0.73
一、口算。
0.1×3=4×0.6=0.02×1000=32.6÷10=
0.656×100=10×0.04=0.002×7=1.1×7=
0.6×8=4×0.3=0.1×100=14.2÷10=
27.3×100=10×0.06=0.003×60=0.2×0.07=
二、列竖式计算。
4.2×0.63.9×6.25.6×8.20.66×53.5
2.6×0.095×0.920.97×2.46.5×72.2
7100×0.44.1×0.724.6×9.40.39×3.87
4.2×0.090.78×9.54.7×8.84.46×0.55
一、口算。
0.6×3=5×0.9=0.04×10=42.1÷100=
61.3×10=0.09×0.03=0.001×0.09=1.7×4=
0.2×2=9×0.4=0.3×10=0.098÷1000=
8.1×100=30×0.07=0.05×80=0.01×0.7=
二、列竖式计算。
1.1×0.060.22×3.60.8×0.995×2.96
0.83×0.50.82×4.97.9×0.120.33×3.82
5.8×0.38.9×0.410.35×0.490.15×16.5
1.4×0.020.73×1.10.12×0.557.9×4.4
一、口算。
0.6×5=7×0.4=0.7×10=4.73÷10=
1.01×1000=0.8×0.6=0.003×5=0.13×0.9=
0.7×2=3×0.7=0.2×1000=0.607÷10=
0.988×1000=3×0.02=0.02×0.06=0.04×0.4=
二、列竖式计算。
3.9×0.050.28×9.83.7×9.30.77×70.3
5.6×0.80.92×9.60.82×2.66.2×67.5
0.49×0.041.5×0.616.1×4.70.47×86.1
1.8×0.53×0.764.9×922.5×0.72
一、口算。
0.9×6=3×0.4=0.005×1000=5.5÷100=
0.144×100=0.07×0.7=0.1×9=1.6×80=
0.5×2=4×0.9=0.2×100=8.36÷100=
6.2×1000=6×0.06=0.001×900=0.2×400=
二、列竖式计算。
0.92×0.093.2×0.440.26×3.90.87×15
8.6×0.060.11×9.62.3×60.53×88.8
860×0.036.1×2.13.3×0.220.88×75.8
2.3×0.70.38×7.29.7×7.81.14×0.94
一、口算。
0.2×4=9×0.6=0.3×100=0.47÷10=
9.78×10=40×0.07=0.01×0.4=0.2×0.6=
0.2×2=8×0.7=0.005×100=56.1÷100=
7.29×100=1×0.7=0.004×80=2×0.04=
二、列竖式计算。
0.66×0.050.18×2.60.18×2.41.7×7.31
1.4×0.98.2×0.220.63×0.761×95.8
0.81×0.52.8×0.287.5×0.734.3×48.2
4.6×0.80.31×0.540.88×7.665.2×2.9
一、口算。
0.5×6=6×0.3=0.6×100=10.9÷100=
45.8×10=90×0.7=0.005×0.09=1.5×0.03=
0.9×5=9×0.2=0.004×100=0.174÷10=
9×100=0.9×0.9=0.9×20=1.9×90=
二、列竖式计算。
6.1×0.090.82×0.391.9×0.180.43×13.7
7.3×0.29.3×9.20.5×0.720.32×2.36
7.1×0.085.4×6.94.5×7.30.24×97.6
8.3×0.81.5×7.15.7×6.57.59×0.21
一、口算。
0.1×7=3×0.2=0.04×100=30.4÷10=
3.2×100=0.03×0.7=0.008×0.03=0.15×70=
0.4×7=8×0.5=0.9×100=9÷100=
5.31×10=0.08×0.9=0.002×600=0.9×0.5=
二、列竖式计算。
0.34×0.060.31×3.30.8×7.30.24×3.11
4.9×0.030.58×0.466.8×6.36.4×71.5
82×0.70.21×0.117.8×4.90.89×12.6
7.1×0.60.22×0.630.93×9.95.79×6.3
一、口算。
0.7×8=4×0.5=0.01×1000=0.603÷100=
0.97×1000=0.7×0.03=0.2×200=0.1×400=
0.4×8=2×0.7=0.1×10=0.806÷10=
0.302×10=30×0.03=0.2×0.2=0.07×600=
二、列竖式计算。
0.86×0.53.6×0.126.2×0.870.41×7.62
8.4×0.028.6×0.256.9×0.268.1×8.21
3400×0.20.13×0.145.7×6.80.77×5.13
6.3×0.060.17×2.60.67×0.626.41×0.2
一、口算。
0.9×2=3×0.4=0.04×1000=72.4÷10=
0.414×100=0.2×0.4=0.4×0.08=2×600=
0.9×3=9×0.4=0.007×10=30.1÷10=
69.8×1000=0.07×0.07=0.008×0.08=0.14×500=
二、列竖式计算。
0.83×0.60.83×0.50.63×0.996.4×5.46
1.5×0.034.5×1.15.5×9.70.3×2.13
34×0.63.7×0.662.6×4.60.51×6.78
0.61×0.049.3×0.960.51×0.239.65×0.32
一、口算。
0.1×2=7×0.9=0.003×100=75.1÷10=
54×10=0.9×0.6=0.3×90=0.15×20=
0.8×2=2×0.6=0.09×10=41÷10=
2.47×1000=30×0.04=0.08×0.2=0.12×80=
二、列竖式计算。
0.24×0.43.9×1.58.4×3.92.5×13
2.1×0.30.26×0.545.2×0.592.3×2.48
38×0.80.82×0.332.8×44.5×24.1
0.45×0.35.6×6.65.3×0.2136.4×0.97
一、口算。
0.8×3=8×0.4=0.005×10=0.437÷100=
0.379×10=9×0.3=0.4×5=0.01×8=
0.8×7=7×0.4=0.09×10=9.92÷1000=
44.2×1000=30×0.5=0.006×0.02=1.5×2=
二、列竖式计算。
0.92×0.084.8×0.671.6×7.20.38×72.4
1.1×0.41.3×0.870.61×0.739.7×10.8
0.87×0.57.3×9.38.3×50.61×94.1
0.33×0.47.8×4.10.79×9.490.3×0.94
一、口算。
0.9×7=4×0.9=0.04×1000=0.836÷1000=
18.1×1000=0.05×0.8=0.5×0.8=0.07×6=
0.7×8=7×0.9=0.001×10=53.6÷100=
7.8×100=0.8×0.08=0.7×5=0.16×0.07=
二、列竖式计算。
7.1×0.091.8×73.6×0.752.5×7.78
7.9×0.050.2×60.25×6.54.7×23.3
8.5×0.040.61×0.861.2×0.70.54×7.34
2.4×0.70.59×0.620.82×14.55×0.44
一、口算。
0.7×2=7×0.3=0.5×10=1.08÷1000=
0.049×1000=5×0.5=0.06×4=0.17×0.04=
0.8×5=4×0.5=0.003×100=6.65÷100=
0.997×10=3×0.5=0.006×900=0.1×0.9=
二、列竖式计算。
0.75×0.70.11×7.98.1×9.16.5×28.5
0.29×0.60.52×0.338×5.30.13×93.6
0.27×0.72.2×4.20.49×2.17.6×7.44
0.32×0.20.14×0.395.3×583×6.5
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