北师大版四年级数学下册第三单元小数乘法专项练习题103.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103.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103
一、口算。
0.1×8=5×0.7=0.6×100=81.5÷1000=
38.4×100=60×0.08=0.008×400=0.6×0.3=
0.9×7=7×0.6=0.3×1000=63.3÷1000=
88.5×100=0.5×0.7=0.02×0.3=0.9×800=
二、列竖式计算。
0.18×0.80.25×0.985.2×5.69×41.2
0.42×0.080.32×3.50.86×0.680.19×8.76
0.19×0.20.86×0.734.8×0.420.94×19.3
6.4×0.090.68×9.30.63×0.1275.5×0.38
一、口算。
0.8×4=3×0.4=0.004×1000=98.8÷100=
19×10=0.03×0.08=0.4×20=0.06×90=
0.6×5=3×0.3=0.8×1000=5.95÷1000=
0.465×1000=0.09×0.8=0.07×0.07=0.4×80=
二、列竖式计算。
0.36×0.69.1×0.760.23×0.160.88×7.86
6.2×0.80.65×0.220.47×87.2×3.91
0.73×0.029×4.40.26×0.790.89×8.82
0.86×0.080.85×29.6×476.8×8.1
一、口算。
0.9×4=8×0.7=0.005×100=80.6÷1000=
5.19×10=7×0.03=0.05×0.04=0.05×500=
0.8×3=3×0.5=0.03×10=92.8÷100=
0.847×100=50×0.09=0.02×0.03=0.4×80=
二、列竖式计算。
3.6×0.52.5×0.474.9×2.50.6×8.45
8.9×0.70.37×0.198.4×0.851.9×7.61
0.15×0.30.98×4.24.5×6.80.57×30.6
0.21×0.27.2×9.89.8×0.6457.4×4.4
一、口算。
0.9×4=4×0.3=0.3×1000=92.9÷1000=
0.092×100=0.6×0.05=0.005×0.03=1.8×6=
0.9×2=2×0.2=0.3×10=1.84÷10=
4.1×10=90×0.9=0.7×60=0.13×50=
二、列竖式计算。
4.4×0.27.9×9.11.8×6.77.9×88.4
0.93×0.082.6×1.23.9×9.58.5×1.01
79×0.030.25×1.97.6×0.361.8×96.6
0.22×0.70.61×7.92.5×0.974.7×3.3
一、口算。
0.6×6=4×0.7=0.9×1000=0.5÷10=
0.385×100=8×0.08=0.07×5=0.01×0.05=
0.9×3=2×0.6=0.2×1000=0.979÷1000=
8.06×100=0.5×0.4=0.005×200=1.8×0.8=
二、列竖式计算。
2.1×0.046.6×0.880.33×0.384.5×60.1
2.9×0.042.5×4.72.4×9.14×97.1
9900×0.030.11×6.10.47×6.90.34×36.1
0.75×0.087.3×0.271×1.855.1×2.3
一、口算。
0.9×8=8×0.4=0.6×1000=0.647÷10=
1.09×10=8×0.8=0.02×300=0.1×8=
0.6×2=9×0.5=0.02×1000=13.6÷10=
0.197×1000=8×0.7=0.002×3=0.3×9=
二、列竖式计算。
4.3×0.60.86×4.43.1×0.530.15×45.4
0.99×0.40.19×0.120.62×2.80.42×7.11
31×0.30.73×6.23.6×0.910.71×14.9
3.7×0.70.81×0.160.22×0.5461.4×0.68
一、口算。
0.5×9=4×0.9=0.009×100=86.1÷1000=
30.7×10=0.2×0.6=0.009×50=0.17×0.06=
0.3×4=9×0.9=0.5×10=37.3÷1000=
8.67×100=6×0.5=0.6×70=1×90=
二、列竖式计算。
0.38×0.58.6×7.14×0.483×8.72
2.9×0.075×0.828×35.5×9.62
780×0.089.5×0.80.75×2.20.47×33.8
0.94×0.89.8×5.70.47×2.89×0.51
一、口算。
0.4×9=7×0.3=0.3×10=8.54÷10=
0.91×10=0.1×0.05=0.006×0.02=1×800=
0.1×4=7×0.7=0.02×100=0.181÷10=
87.4×1000=0.07×0.09=0.8×800=0.18×40=
二、列竖式计算。
4.1×0.044.3×0.660.21×6.10.48×98.4
9.4×0.30.8×3.30.27×8.60.8×62.6
0.49×0.020.68×70.22×0.390.59×52.2
3.5×0.080.12×6.70.9×0.936.41×1.2
一、口算。
0.6×9=2×0.7=0.01×1000=8.85÷1000=
29.8×1000=60×0.09=0.09×0.02=0.12×40=
0.2×6=4×0.6=0.7×10=8.22÷100=
1.58×1000=80×0.6=0.4×7=1.3×0.2=
二、列竖式计算。
9.9×0.081.6×0.310.36×5.87.4×86
0.93×0.070.3×4.32.3×3.90.31×30.7
0.62×0.040.19×0.260.72×3.60.58×9.46
0.79×0.21.1×9.87.8×0.9546.3×0.85
一、口算。
0.1×5=6×0.3=0.1×100=45.5÷100=
0.646×10=0.1×0.8=0.08×500=1.2×300=
0.8×3=2×0.4=0.004×10=0.854÷100=
0.39×10=0.8×0.06=0.7×8=0.16×0.05=
二、列竖式计算。
0.42×0.030.3×9.40.44×2.50.29×7.78
0.99×0.050.63×0.780.37×1.10.9×70.7
7300×0.087.2×33×3.80.34×28.6
1.7×0.080.43×0.583.8×2.32.63×2.1
一、口算。
0.4×9=5×0.4=0.05×1000=5.35÷10=
4.65×1000=30×0.7=0.6×7=0.6×0.06=
0.7×8=6×0.6=0.007×100=76.9÷1000=
56.2×1000=40×0.3=0.7×2=0.5×80=
二、列竖式计算。
0.65×0.34.7×4.20.41×0.472×11.4
8.3×0.63×8.22.5×0.492.2×6.79
0.37×0.87×0.938.4×4.70.73×5.96
0.58×0.049.5×4.87.7×0.5943.5×1.9
一、口算。
0.4×6=2×0.6=0.08×10=0.614÷10=
0.137×1000=60×0.9=0.008×500=0.09×60=
0.3×4=9×0.8=0.03×1000=59.9÷1000=
5.33×100=70×0.07=0.005×0.07=1.7×0.08=
二、列竖式计算。
8.5×0.22.8×5.80.89×2.50.55×31.7
0.46×0.43×6.20.12×8.28.8×4.02
5400×0.040.43×7.37.5×6.44.2×87.1
0.45×0.070.58×9.70.38×7.44.75×0.4
一、口算。
0.5×9=2×0.4=0.8×100=0.64÷1000=
90.1×1000=0.04×0.06=0.7×0.4=0.06×500=
0.2×3=3×0.7=0.002×100=0.174÷100=
97×10=5×0.5=0.001×0.2=1.5×20=
二、列竖式计算。
0.56×0.074.2×0.270.25×0.850.4×1.35
6.9×0.028.3×0.770.85×4.90.62×1.37
44×0.041.1×1.29.5×9.60.6×15.3
6.7×0.20.43×6.20.95×5.330.4×8.7
一、口算。
0.9×9=4×0.3=0.4×10=0.91÷1000=
0.48×10=0.9×0.07=0.1×500=0.15×0.06=
0.1×6=2×0.6=0.6×10=37.6÷10=
27×100=0.4×0.8=0.04×0.04=0.01×3=
二、列竖式计算。
0.13×0.076.8×5.80.87×0.87.4×8.77
5.2×0.026.2×0.964.2×0.520.57×43.3
3500×0.060.25×0.969.9×0.130.23×88.4
8.4×0.42.3×3.20.23×496.7×2.4
一、口算。
0.4×3=7×0.3=0.008×10=4.11÷1000=
2.86×100=0.2×0.09=0.09×200=0.05×2=
0.2×5=7×0.5=0.03×10=0.321÷100=
5.98×1000=1×0.4=0.9×800=0.01×200=
二、列竖式计算。
2.6×0.040.38×0.927.2×9.91.8×2.59
0.93×0.098.8×0.793.2×0.722.7×62.9
0.24×0.084.2×0.173.1×2.30.4×5.02
0.44×0.063.7×3.42.9×0.7842×9.3
一、口算。
0.2×7=3×0.2=0.003×10=20.4÷1000=
10.8×1000=60×0.2=0.7×700=0.13×600=
0.5×2=8×0.3=0.007×100=0.358÷100=
69.6×1000=6×0.9=0.007×0.7=0.14×9=
二、列竖式计算。
0.92×0.072.8×0.990.27×7.10.31×3.16
0.82×0.029.5×0.991.6×0.481.9×36.9
34×0.80.13×0.356.5×0.496.2×26.4
0.76×0.040.25×0.720.54×0.582.67×9.1
一、口算。
0.6×9=9×0.7=0.005×100=2.49÷10=
7.4×100=0.5×0.2=0.5×9=1×0.03=
0.2×6=2×0.3=0.9×100=0.3÷100=
0.182×10=2×0.8=0.5×0.02=1.3×0.03=
二、列竖式计算。
0.95×0.020.67×0.285.5×0.480.98×96.4
0.81×0.87.5×5.60.38×0.53.2×41.7
53×0.83.9×63.7×0.190.28×67.8
4.7×0.90.17×0.197.2×5.42.32×3.1
一、口算。
0.6×4=5×0.4=0.9×1000=6.68÷100=
30.1×10=4×0.8=0.4×0.02=0.8×600=
0.4×4=5×0.9=0.006×1000=86.3÷1000=
7.34×100=20×0.07=0.008×0.3=0.03×2=
二、列竖式计算。
9.3×0.070.42×0.897.8×7.10.57×5.31
0.62×0.65.3×4.59.1×0.952.3×4.05
850×0.047.9×0.280.31×9.90.19×2.15
3.3×0.85×0.475.2×0.4698.6×0.5
一、口算。
0.3×8=6×0.8=0.5×10=46.2÷1000=
0.152×10=8×0.8=0.03×2=0.1×6=
0.9×2=8×0.4=0.01×10=98.9÷100=
0.74×100=6×0.06=0.04×0.9=0.2×400=
二、列竖式计算。
6.6×0.79.4×0.850.51×0.30.1×8
0.93×0.088.2×0.435.4×0.689.4×8.91
0.95×0.080.25×0.870.45×0.310.76×95.8
0.45×0.85.1×5.60.28×1.95.82×4.2
一、口算。
0.6×9=2×0.5=0.08×10=4.72÷1000=
0.35×100=5×0.4=0.1×20=0.01×7=
0.2×3=4×0.3=0.3×1000=4.96÷1000=
82.7×10=5×0.06=0.005×90=0.07×0.04=
二、列竖式计算。
0.15×0.38.8×0.270.95×0.354.6×5.29
0.92×0.078.7×0.925.7×8.45.6×2.96
8.8×0.020.4×0.282.5×1.11.2×64.9
0.75×0.055×9.80.29×8.891.6×0.24
一、口算。
0.9×3=8×0.7=0.004×10=4.38÷100=
73.1×1000=0.04×0.6=0.001×0.7=0.2×0.08=
0.9×8=9×0.5=0.2×10=9.42÷100=
9.08×10=0.02×0.08=0.3×0.03=0.14×500=
二、列竖式计算。
1.5×0.041×4.90.88×6.10.17×4.11
9.5×0.79.9×0.113.4×0.645.4×56.9
78×0.50.37×0.734.4×0.680.74×35.5
7.4×0.63.1×0.999.7×4.52.02×0.39
一、口算。
0.5×3=9×0.7=0.5×1000=47.6÷10=
0.423×100=80×0.09=0.8×0.4=0.06×0.3=
0.9×4=7×0.3=0.003×1000=9.67÷100=
0.716×10=1×0.04=0.08×5=0.15×70=
二、列竖式计算。
9.7×0.048×7.20.11×0.280.64×54.3
0.76×0.042.9×4.59.2×0.340.9×67
97×0.30.93×0.285.8×6.10.28×55.5
0.87×0.85×9.13×7.655.2×0.23
一、口算。
0.1×6=5×0.4=0.7×100=0.788÷1000=
74×100=90×0.02=0.03×7=0.6×0.09=
0.9×6=5×0.2=0.01×100=20.8÷100=
0.312×10=0.7×0.9=0.9×200=1.3×0.05=
二、列竖式计算。
4.5×0.21.2×0.774.9×0.364.8×5.77
0.95×0.085.2×0.230.26×0.510.13×39.7
0.77×0.062.8×69.3×6.60.95×82
3.2×0.036.4×5.26.3×5.891.6×6.7
一、口算。
0.9×4=8×0.6=0.001×10=0.62÷100=
0.504×1000=90×0.8=0.4×600=0.1×0.8=
0.1×9=8×0.8=0.7×100=4.57÷100=
0.378×100=0.04×0.9=0.002×0.3=0.5×0.04=
二、列竖式计算。
7.4×0.030.89×0.538.3×9.50.93×69
0.28×0.70.67×4.4
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