北师大版四年级数学下册小数乘法专项练习题42.docx
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北师大版四年级数学下册小数乘法专项练习题42
一、口算。
0.2×5＝8×0.6＝0.004×100＝17.5÷10＝
0.534×10＝7×0.3＝0.9×700＝0.08×0.4＝
二、列竖式计算。
5.4×0.90.94×10.36×0.270.36×48.2
4.5×0.080.39×7.80.84×24.1×48.8
三、计算。
0.67×6.2＋0.117.2＋0.98×0.30.36＋6＋3.64
0.72×0.2＋0.72×0.825×6×0.2
7.6×0.9－2.6×0.4390－4.7－95.3
一、口算。
0.6×5＝2×0.7＝0.9×10＝6.71÷1000＝
0.881×100＝0.1×0.07＝0.01×0.6＝0.8×600＝
二、列竖式计算。
0.55×0.020.37×4.26.2×51.8×5.05
3.3×0.60.46×0.720.12×0.860.41×3.72
三、计算。
0.14×85＋1.10.84＋6.1×0.78.6＋0.47＋81.4
0.28×7.5＋0.28×2.50.25×8.4×0.2
0.85×0.08－0.1×0.029700－1.5－18.5
一、口算。
0.7×4＝9×0.7＝0.3×10＝1.16÷100＝
83.9×100＝0.08×0.8＝0.006×0.8＝1.5×0.09＝
二、列竖式计算。
0.91×0.95.2×0.789.2×3.90.88×1.52
1.9×0.055.3×6.70.87×0.411.8×9.05
三、计算。
8.7×61＋0.095.4＋56×64.1＋3.9＋25.9
6.2×0.23＋6.2×0.7725×2×0.02
0.61×0.08－0.26×0.042300－4－36
一、口算。
0.2×5＝9×0.9＝0.004×100＝17.1÷10＝
8.08×100＝0.5×0.06＝0.3×6＝1.5×80＝
二、列竖式计算。
0.48×0.024.4×0.350.27×0.46.7×4.27
0.96×0.83.8×7.10.57×1.93.6×63.6
三、计算。
5.6×52＋0.110.33＋0.37×0.40.52＋9.8＋4.48
0.11×90＋0.11×100.05×18×0.4
0.77×0.07－0.46×0.048100－1.4－48.6
一、口算。
0.9×8＝4×0.9＝0.05×100＝8.86÷100＝
0.544×1000＝80×0.9＝0.02×900＝0.19×0.8＝
二、列竖式计算。
0.15×0.044.1×5.80.63×0.590.3×61.8
1.8×0.046.2×7.22.2×9.16.1×5.23
三、计算。
6.3×0.02＋0.089.8＋23×64.5＋3.6＋65.5
2.7×50＋2.7×50125×0.35×0.2
0.71×0.09＋0.31×0.025300－0.68－8.32
一、口算。
0.6×7＝8×0.2＝0.1×100＝4.22÷100＝
0.381×100＝0.07×0.08＝0.7×20＝0.13×0.08＝
二、列竖式计算。
4.6×0.49.3×0.480.96×3.77.3×73
0.78×0.32.1×80.78×9.67.1×1.92
三、计算。
0.26×0.2＋0.050.24＋4.9×0.45.1＋3.9＋34.9
0.86×8.2＋0.86×1.80.05×7.1×0.2
0.77×0.08＋0.39×0.032400－7.2－12.8
一、口算。
0.8×9＝9×0.9＝0.1×10＝0.16÷1000＝
1.09×100＝40×0.3＝0.09×500＝1.5×40＝
二、列竖式计算。
0.55×0.035.7×0.336.2×0.440.4×42.5
0.94×0.074.6×69.7×0.630.78×29.3
三、计算。
45×0.66＋0.61.7＋0.12×40.96＋3＋8.04
0.13×0.85＋0.13×0.150.5×0.26×4
0.88×0.05－0.42×0.058000－0.44－3.56
一、口算。
0.5×2＝3×0.9＝0.5×10＝0.559÷1000＝
90.6×10＝0.5×0.06＝0.006×500＝0.02×30＝
二、列竖式计算。
0.21×0.057.1×0.561.1×5.23.6×53.9
0.17×0.053.8×1.10.98×0.590.34×9.74
三、计算。
4.5×29＋0.077.9＋5.4×40.88＋1.9＋1.12
5×7.2＋5×2.85×6×0.2
9.7×0.7＋4.8×0.3720－0.19－5.81
一、口算。
0.5×7＝2×0.8＝0.03×10＝0.19÷10＝
8.41×100＝7×0.6＝0.7×9＝0.8×0.8＝
二、列竖式计算。
0.19×0.065.1×1.20.29×0.250.78×5.88
0.28×0.062.4×70.58×9.30.46×4.42
三、计算。
7.3×22＋0.16.5＋35×88.8＋5.4＋21.2
0.5×8.8＋0.5×1.20.05×0.77×0.08
0.62×0.07－0.38×0.024400－9.8－50.2
一、口算。
0.9×8＝3×0.5＝0.002×100＝0.51÷10＝
69.1×1000＝3×0.7＝0.6×80＝1.9×3＝
二、列竖式计算。
6.6×0.60.38×2.25.8×0.657.6×7.31
6.1×0.090.1×9.70.79×8.20.69×9.53
三、计算。
7×95＋0.86.9＋0.21×0.90.16＋0.17＋3.84
0.74×37＋0.74×63125×79×0.4
5×0.9＋2.4×0.28200－0.19－1.81
一、口算。
0.9×7＝4×0.2＝0.009×100＝65.2÷10＝
8.57×100＝0.06×0.4＝0.6×0.03＝0.06×4＝
二、列竖式计算。
3.4×0.066.7×0.990.55×9.95.3×3.95
9.9×0.082.2×0.666.3×8.10.93×8.11
三、计算。
1.1×0.64＋1.10.94＋0.43×40.93＋0.35＋7.07
0.29×19＋0.29×810.5×57×4
5.1×0.8＋4.1×0.29100－6.3－23.7
一、口算。
0.1×5＝9×0.3＝0.5×10＝5.43÷1000＝
22.2×1000＝0.1×0.03＝0.9×500＝0.07×2＝
二、列竖式计算。
0.83×0.096.3×0.737.4×5.13.9×1.28
0.87×0.21×7.33.4×0.933.2×96
三、计算。
0.1×0.29＋0.69＋0.77×0.70.95＋8.8＋3.05
6.5×13＋6.5×870.5×0.46×4
7.1×0.6＋4.2×0.4480－0.32－8.68
一、口算。
0.7×7＝9×0.3＝0.07×100＝0.982÷100＝
36.1×1000＝0.06×0.04＝0.5×40＝0.6×0.04＝
二、列竖式计算。
8.1×0.90.28×0.362.7×1.37.9×46.3
4.7×0.30.27×0.610.73×0.240.46×3.37
三、计算。
66×0.03＋0.079.5＋0.34×0.20.66＋0.93＋5.34
1.5×4.8＋1.5×5.2125×0.13×0.8
0.66×0.09－0.25×0.03120－0.85－6.15
一、口算。
0.4×7＝3×0.6＝0.07×10＝0.65÷1000＝
0.252×100＝0.07×0.5＝0.005×9＝0.14×0.08＝
二、列竖式计算。
0.23×0.60.87×0.450.16×2.25.8×29.2
9.1×0.030.44×2.59.4×9.10.67×70.4
三、计算。
53×0.3＋0.054.4＋57×0.80.46＋7.1＋9.54
5.9×60＋5.9×4012.5×9.5×0.08
6.4×0.6－1.4×0.56400－0.19－1.81
一、口算。
0.8×5＝8×0.3＝0.07×100＝6.26÷100＝
2.6×100＝0.6×0.4＝0.06×7＝0.11×0.03＝
二、列竖式计算。
2.7×0.030.4×8.70.97×0.970.99×50.8
6.3×0.020.82×7.20.26×9.90.19×4.4
三、计算。
34×0.9＋0.110.34＋0.56×0.90.96＋0.79＋5.04
0.98×29＋0.98×712.5×0.84×8
6.2×0.6＋2.5×0.54300－0.66－1.34
一、口算。
0.7×8＝3×0.2＝0.6×100＝0.77÷1000＝
8.5×10＝0.6×0.05＝0.06×0.4＝0.1×0.8＝
二、列竖式计算。
2.7×0.68.4×0.820.4×5.30.74×1.25
6.3×0.32.4×0.328.6×5.80.81×3.93
三、计算。
0.07×0.24＋0.16＋0.49×31.6＋8.2＋28.4
0.71×0.47＋0.71×0.531.25×0.02×0.02
9.6×0.7－2.8×0.39500－7.7－72.3
一、口算。
0.7×2＝8×0.3＝0.005×1000＝8.8÷1000＝
0.805×10＝9×0.2＝0.3×8＝1.8×0.8＝
二、列竖式计算。
0.18×0.22.1×5.60.89×3.40.93×25.6
0.65×0.50.79×0.510.5×1.90.77×9.32
三、计算。
0.13×22＋0.77.6＋0.13×34.3＋0.45＋75.7
3.9×4.5＋3.9×5.50.25×6×4
8.6×0.5＋2.9×0.38400－0.92－6.08
一、口算。
0.7×7＝9×0.6＝0.001×1000＝0.93÷1000＝
25.3×100＝40×0.05＝0.5×50＝1.4×900＝
二、列竖式计算。
2.7×0.35.2×0.840.15×0.980.34×39.2
0.48×0.062.1×0.80.31×0.912.4×5.69
三、计算。
93×0.22＋0.81.5＋26×50.89＋0.21＋8.11
0.53×57＋0.53×430.05×3.2×8
8.4×0.6＋2.8×0.5490－9.3－60.7
一、口算。
0.9×3＝9×0.7＝0.01×10＝0.715÷1000＝
0.711×100＝0.07×0.5＝0.01×0.05＝0.2×0.6＝
二、列竖式计算。
2.1×0.20.6×7.80.95×4.90.81×49.9
3.8×0.028.8×7.40.27×6.80.52×3.47
三、计算。
17×69＋0.080.17＋24×0.28.1＋0.4＋61.9
0.95×0.85＋0.95×0.15125×13×0.2
0.66×0.09－0.29×0.03600－2.2－67.8
一、口算。
0.8×5＝5×0.6＝0.003×10＝8.7÷100＝
2.6×10＝10×0.06＝0.04×0.7＝1.7×0.8＝
二、列竖式计算。
0.41×0.030.26×0.380.27×0.190.66×31.3
0.63×0.079.8×0.670.28×0.857.3×30.3
三、计算。
8.5×6＋0.123.7＋0.49×0.70.6＋2.6＋4.4
4×15＋4×851.25×0.38×4
7.5×0.7－1.3×0.38200－0.89－7.11
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