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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