北师大版四年级数学下册第三单元小数乘法专项练习题113.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113
一、口算。
0.9×9＝9×0.2＝0.003×1000＝0.985÷100＝
1.69×100＝0.3×0.08＝0.01×0.03＝0.13×700＝
0.3×8＝9×0.8＝0.005×1000＝46.1÷10＝
2.93×1000＝70×0.04＝0.06×500＝0.15×800＝
二、列竖式计算。
0.58×0.069.1×3.27.8×5.91.2×6.28
2.6×0.060.85×8.81.1×3.99×2.89
0.23×0.40.47×3.30.86×0.528.7×2.03
9.5×0.070.91×7.62.3×0.459.4×9.9
一、口算。
0.1×2＝4×0.6＝0.9×1000＝0.3÷10＝
18.7×1000＝8×0.03＝0.001×9＝0.04×0.6＝
0.6×2＝8×0.2＝0.002×10＝1.49÷1000＝
0.306×1000＝0.5×0.9＝0.005×0.7＝1.3×900＝
二、列竖式计算。
6.9×0.60.91×8.84.3×0.710.13×63.5
0.34×0.021.7×3.61.2×0.336.4×27.1
5.3×0.40.71×46.8×0.667.6×42.9
8.8×0.080.48×0.340.34×0.2748.5×0.14
一、口算。
0.5×3＝3×0.5＝0.03×10＝87.8÷10＝
26.1×10＝3×0.8＝0.6×0.6＝0.18×30＝
0.4×5＝5×0.3＝0.03×1000＝0.538÷10＝
1.19×10＝0.4×0.4＝0.1×0.03＝0.04×800＝
二、列竖式计算。
0.52×0.038.2×0.340.29×33.3×35.9
9.2×0.064.4×0.170.83×3.30.27×6.76
64×0.60.92×1.29.1×0.260.2×7.45
9.2×0.70.72×0.742.1×0.6424.3×4.2
一、口算。
0.1×7＝9×0.4＝0.3×1000＝0.43÷1000＝
7.77×1000＝0.04×0.4＝0.003×0.2＝0.06×3＝
0.6×9＝8×0.6＝0.08×10＝46.8÷100＝
0.079×1000＝0.04×0.7＝0.007×0.08＝0.02×20＝
二、列竖式计算。
0.68×0.83.8×0.699.8×4.15.2×13.9
0.35×0.040.9×0.710.16×0.273.5×7.07
3100×0.055.5×8.53.2×0.60.46×20.3
7.2×0.64.6×5.30.58×0.7791.7×0.29
一、口算。
0.8×5＝6×0.3＝0.09×100＝2.67÷10＝
0.011×100＝0.03×0.03＝0.009×300＝0.1×800＝
0.8×6＝2×0.8＝0.008×10＝0.838÷10＝
2.85×1000＝0.03×0.04＝0.02×4＝0.1×50＝
二、列竖式计算。
0.49×0.052.9×9.70.31×8.92.7×41
1.2×0.088.3×3.18.1×0.30.6×4.09
6800×0.90.43×3.40.21×67.4×15.8
0.24×0.99.3×9.90.99×6.785.6×0.59
一、口算。
0.6×2＝4×0.4＝0.05×1000＝65÷10＝
4.75×100＝0.08×0.08＝0.006×600＝0.02×3＝
0.2×4＝2×0.3＝0.008×100＝61.1÷10＝
9.73×1000＝3×0.9＝0.3×4＝1.9×200＝
二、列竖式计算。
0.71×0.70.47×1.64×5.29.6×13.7
4.7×0.070.4×0.10.6×3.13.8×49.7
0.94×0.074.6×0.620.84×1.41×1.88
0.61×0.050.19×0.979.6×4.52.5×3.8
一、口算。
0.1×7＝2×0.3＝0.003×100＝33.4÷100＝
64.8×100＝3×0.5＝0.5×90＝0.08×2＝
0.1×3＝8×0.2＝0.2×10＝0.335÷10＝
44.8×1000＝10×0.3＝0.02×900＝0.2×9＝
二、列竖式计算。
4.9×0.043.5×0.239×0.680.3×19.7
0.51×0.24.5×0.440.85×0.227.1×5.89
1700×0.80.64×1.60.85×8.84.7×71.6
0.66×0.070.3×0.291.4×9.250.3×3.7
一、口算。
0.8×5＝4×0.6＝0.1×100＝6.73÷10＝
0.626×10＝0.3×0.8＝0.8×9＝0.8×0.6＝
0.5×7＝7×0.9＝0.6×10＝0.331÷1000＝
0.188×100＝0.05×0.7＝0.06×0.05＝0.15×700＝
二、列竖式计算。
0.83×0.045.5×5.21.6×1.90.33×1.96
0.37×0.77.4×74.2×0.30.2×8.18
83×0.27×0.887.2×0.420.1×3.59
0.53×0.70.26×7.61.4×6.66.24×0.76
一、口算。
0.9×2＝5×0.8＝0.001×100＝6.05÷1000＝
0.48×10＝0.07×0.2＝0.005×9＝0.16×30＝
0.4×8＝5×0.7＝0.06×1000＝0.226÷10＝
0.241×100＝0.05×0.7＝0.002×30＝0.03×800＝
二、列竖式计算。
0.85×0.40.83×0.987.2×0.36.9×26
4.8×0.025.2×0.475.3×0.338.3×4.9
2.9×0.060.71×5.60.25×8.35.9×7.11
0.21×0.050.94×6.49.4×3.626.7×0.12
一、口算。
0.9×5＝3×0.6＝0.07×1000＝0.35÷1000＝
21.1×100＝90×0.2＝0.08×0.06＝1.2×0.7＝
0.5×9＝8×0.2＝0.006×10＝0.655÷1000＝
4.87×10＝70×0.9＝0.5×0.02＝0.5×0.8＝
二、列竖式计算。
0.18×0.38×7.80.29×0.221.8×4.59
7.7×0.50.47×0.910.94×0.570.56×89
910×0.89.9×0.660.57×9.50.65×4.92
8.9×0.30.85×4.15.2×19.03×0.58
一、口算。
0.6×6＝3×0.5＝0.009×10＝3.12÷10＝
4.3×100＝0.2×0.7＝0.05×0.06＝0.04×0.05＝
0.4×2＝2×0.4＝0.1×10＝5.35÷100＝
61.6×10＝0.02×0.04＝0.06×0.05＝0.02×0.3＝
二、列竖式计算。
0.29×0.50.14×0.130.58×93.1×1.36
0.38×0.092.1×3.60.46×1.48.4×73
49×0.086.9×5.88.5×1.56.4×78.8
3.4×0.020.76×0.610.12×6.74.18×8
一、口算。
0.2×2＝2×0.9＝0.6×100＝7.2÷1000＝
0.09×100＝0.7×0.08＝0.05×3＝0.19×60＝
0.1×3＝6×0.3＝0.006×1000＝0.644÷10＝
0.821×10＝0.04×0.02＝0.08×0.7＝1.8×0.09＝
二、列竖式计算。
0.82×0.050.65×0.511.6×0.66.2×58.6
0.56×0.34×0.370.79×7.40.47×28.5
54×0.080.54×0.480.17×0.937×6.72
0.92×0.70.99×0.770.6×8.99.26×4.9
一、口算。
0.5×8＝3×0.4＝0.1×100＝64÷1000＝
0.693×1000＝60×0.6＝0.1×0.4＝0.07×90＝
0.7×8＝5×0.7＝0.2×10＝0.479÷100＝
0.3×1000＝1×0.6＝0.006×900＝0.18×60＝
二、列竖式计算。
0.74×0.050.92×0.210.46×7.47.4×33.7
0.85×0.28.4×0.580.48×4.40.81×2.8
86×0.40.84×30.79×0.256.6×6.12
3.7×0.81.6×8.40.79×8.571.7×0.83
一、口算。
0.4×6＝9×0.3＝0.08×100＝68.1÷1000＝
73.7×10＝0.06×0.05＝0.3×50＝0.01×6＝
0.3×2＝9×0.4＝0.01×1000＝7÷100＝
0.388×10＝0.9×0.7＝0.008×0.2＝0.9×0.04＝
二、列竖式计算。
0.87×0.060.36×3.60.61×1.96.2×4.66
0.45×0.95.3×5.68.9×0.360.28×4.59
77×0.40.2×8.48×0.890.69×7.31
0.39×0.053.9×3.60.67×2.68.38×0.54
一、口算。
0.1×5＝7×0.2＝0.08×1000＝35.7÷10＝
6.38×1000＝0.7×0.5＝0.03×3＝1.6×0.3＝
0.7×9＝5×0.2＝0.01×10＝0.07÷10＝
3.85×100＝8×0.04＝0.09×70＝0.07×3＝
二、列竖式计算。
0.91×0.33×5.90.21×0.20.39×57.6
9.2×0.20.56×4.70.68×5.63×3.73
950×0.20.92×9.40.85×0.782.4×8.07
5.4×0.88.2×1.46×0.7544.9×0.32
一、口算。
0.8×9＝9×0.2＝0.5×100＝0.821÷1000＝
0.833×1000＝4×0.4＝0.01×0.05＝0.6×0.9＝
0.3×7＝7×0.8＝0.7×1000＝6.66÷10＝
5.35×100＝6×0.8＝0.1×60＝0.14×0.8＝
二、列竖式计算。
5.7×0.31.3×2.80.77×3.50.92×37
0.46×0.86.5×0.375×0.974.1×3.71
330×0.075.4×0.738.3×2.20.35×4.8
0.53×0.20.11×7.94.2×0.5133.4×0.64
一、口算。
0.2×6＝9×0.9＝0.04×100＝0.063÷1000＝
41.7×100＝4×0.02＝0.4×8＝1.2×500＝
0.2×5＝7×0.5＝0.5×1000＝71÷10＝
4.25×1000＝50×0.7＝0.003×5＝0.07×5＝
二、列竖式计算。
1.6×0.074.1×0.580.67×0.710.47×5.49
0.88×0.060.13×5.36.2×0.890.84×6.02
71×0.73.1×0.310.58×0.334.5×2.94
9.1×0.95.3×0.564.3×0.845.93×0.69
一、口算。
0.8×5＝9×0.3＝0.2×100＝1.3÷1000＝
26.4×100＝0.4×0.6＝0.004×0.5＝1.6×9＝
0.4×3＝5×0.9＝0.09×10＝6.2÷100＝
0.331×1000＝1×0.8＝0.1×200＝0.4×70＝
二、列竖式计算。
8.2×0.90.79×2.40.98×6.90.36×58.9
0.36×0.90.64×9.60.91×0.720.71×37.3
6.1×0.076.3×0.90.84×0.140.29×44.1
0.66×0.092.1×9.56×5.73.78×0.76
一、口算。
0.5×3＝4×0.7＝0.4×10＝9.85÷100＝
1.04×100＝0.9×0.09＝0.09×90＝0.14×0.06＝
0.3×8＝3×0.4＝0.008×100＝0.28÷100＝
7.91×10＝6×0.6＝0.08×3＝0.14×0.03＝
二、列竖式计算。
7.3×0.83.9×2.74.2×0.831.6×76.2
0.77×0.65.1×0.419×0.640.29×58.2
79×0.023.6×9.70.75×3.40.5×34
0.95×0.75.2×2.47.2×0.736.78×0.31
一、口算。
0.9×4＝7×0.7＝0.003×10＝10÷1000＝
3.6×10＝6×0.4＝0.002×900＝0.6×700＝
0.8×4＝5×0.3＝0.08×10＝9.2÷10＝
25.6×100＝0.08×0.7＝0.3×5＝0.2×4＝
二、列竖式计算。
0.88×0.087.7×12.6×0.180.47×9.58
2.7×0.022.3×0.450.45×3.25.1×56.8
8.4×0.98.1×0.598.8×6.60.67×66.1
7.6×0.070.63×0.290.6×1.84.78×0.57
一、口算。
0.5×3＝8×0.3＝0.06×10＝0.523÷1000＝
83.9×100＝0.3×0.02＝0.03×30＝1.8×0.9＝
0.8×8＝9×0.8＝0.05×1000＝63÷100＝
2.19×10＝1×0.06＝0.2×900＝1.4×800＝
二、列竖式计算。
8.9×0.50.46×22.8×8.30.76×39.6
0.64×0.034.5×7.20.12×1.55×89.7
870×0.080.79×0.480.31×2.31.3×3.73
6.7×0.99.9×7.20.77×919.9×0.28
一、口算。
0.4×4＝9×0.7＝0.07×10＝4.17÷1000＝
9.15×10＝0.9×0.03＝0.2×0.07＝1.6×0.8＝
0.3×2＝2×0.7＝0.002×100＝61.4÷10＝
21.2×10＝10×0.02＝0.8×0.02＝1.8×500＝
二、列竖式计算。
0.61×0.093.8×0.428×7.16×8.77
0.87×0.077.8×0.579.5×0.540.64×5.22
6.4×0.60.28×0.660.2×0.40.1×3.29
0.22×0.050.32×0.580.29×5.53.12×7.4
一、口算。
0.5×4＝5×0.4＝0.008×100＝0.358÷100＝
8.19×1000＝0.04×0.07＝0.01×700＝0.04×0.6＝
0.3×2＝6×0.9＝0.6×1000＝7.43÷100＝
0.42×100＝20×0.06＝0.4×0.02＝1.3×0.03＝
二、列竖式计算。
0.25×0.80.7×0.634.9×0.520.96×46.1
3.1×0.90.94×0.490.8×0.311.3×95.1
780×0.56.4×3.70.74×0.690.43×2.89
4.4×0.90.71×0.441.2×0.529.78×4.6
一、口算。
0.9×7＝4×0.9＝0.009×1000＝47.6÷100＝
1.25×10＝2×0.3＝0.001×30＝0.01×200＝
0.3×9＝2×0.3＝0.001×10＝0.582÷10＝
0.897×10＝8×0.04＝0.08×0.2＝1.1×0.07＝
二、列竖式计算。
0.89×0.93.9×3.13.5×4.50.98×1.88
0.94×0.094.5×1.81.3×
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