北师大版四年级数学下册第三单元小数乘法专项练习题74.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74.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74
一、口算。
0.1×3=7×0.2=0.3×10=68.7÷10=
4.34×100=60×0.8=0.6×3=1.8×0.08=
0.9×5=8×0.8=0.005×1000=8.18÷10=
74.7×10=8×0.07=0.004×300=0.02×0.04=
二、列竖式计算。
0.94×0.92.9×4.98.3×0.877.3×46.4
0.72×0.41.3×4.90.6×0.82.6×93.9
85×0.020.24×0.970.38×0.380.6×84.5
0.32×0.73.9×0.780.99×3.87.53×0.69
一、口算。
0.1×6=4×0.6=0.03×10=0.882÷100=
95.9×1000=0.2×0.03=0.003×0.7=1.4×6=
0.1×9=7×0.8=0.005×10=10.3÷100=
1.1×10=80×0.7=0.08×6=0.03×600=
二、列竖式计算。
5.6×0.030.86×0.570.95×7.30.55×98.9
9.6×0.080.23×0.785.3×0.450.85×11.4
890×0.020.69×1.20.33×0.520.18×24.5
0.87×0.53.3×1.70.69×8.971.3×9.6
一、口算。
0.6×4=2×0.2=0.002×1000=1.42÷10=
93.9×100=0.3×0.3=0.3×0.5=0.8×80=
0.6×3=6×0.6=0.8×1000=8.84÷10=
77.5×1000=3×0.02=0.08×0.6=0.16×70=
二、列竖式计算。
3.8×0.30.29×0.119.1×2.14.2×16.8
0.39×0.78.5×2.18.9×6.97×5.69
140×0.39.8×0.490.28×0.890.24×87
7.7×0.60.5×4.60.75×67.07×0.26
一、口算。
0.1×7=5×0.5=0.09×1000=0.765÷100=
0.505×1000=40×0.07=0.04×700=0.14×60=
0.1×5=7×0.9=0.003×10=36.1÷1000=
0.418×1000=0.3×0.5=0.7×0.05=0.04×200=
二、列竖式计算。
3.8×0.45.2×3.60.64×2.19.4×96.8
1.7×0.030.55×2.56×0.80.44×4.79
41×0.033.5×0.570.68×0.430.96×3.27
1.7×0.040.58×0.10.25×0.4749.8×1.8
一、口算。
0.5×8=6×0.5=0.09×100=51.2÷10=
93.8×1000=40×0.08=0.004×9=0.2×0.3=
0.3×6=4×0.7=0.004×1000=2.42÷1000=
0.45×100=0.04×0.07=0.007×60=0.03×0.05=
二、列竖式计算。
0.46×0.040.97×5.94.7×1.88.8×74.6
8.5×0.046.8×0.196.2×4.60.51×39.8
45×0.043×3.24.6×6.81.8×45.2
7.7×0.79.6×0.688×2.47.55×3.9
一、口算。
0.3×5=7×0.7=0.4×1000=3.1÷1000=
73.4×100=3×0.07=0.2×90=0.9×6=
0.9×5=7×0.6=0.002×10=21.7÷10=
9.06×100=9×0.07=0.7×20=1.8×0.05=
二、列竖式计算。
2.2×0.90.87×0.770.18×0.855.3×59.4
9.5×0.32.5×4.70.87×8.10.93×73.4
0.25×0.93×1.30.65×2.89×65.1
0.92×0.053.6×9.80.24×0.8993.4×0.8
一、口算。
0.4×2=5×0.8=0.005×100=0.562÷10=
24.4×1000=30×0.2=0.7×0.5=1.1×800=
0.4×8=8×0.4=0.05×1000=24.1÷1000=
0.291×1000=0.7×0.02=0.09×300=0.9×0.02=
二、列竖式计算。
1.8×0.75.8×0.214.6×1.30.84×7.76
0.88×0.66.9×0.64.4×0.813.8×60.1
6100×0.050.42×0.240.95×0.662.5×1.57
7.4×0.060.84×0.682.7×8.44.02×4.8
一、口算。
0.8×5=9×0.7=0.05×100=3.58÷100=
80.5×1000=8×0.05=0.003×800=0.6×0.6=
0.5×7=9×0.6=0.5×10=50.8÷1000=
3.85×10=0.06×0.8=0.8×70=0.6×7=
二、列竖式计算。
0.81×0.80.12×9.30.76×0.798.8×4.16
7.6×0.60.38×0.991.6×2.30.59×30.5
0.39×0.078.5×0.648.6×0.790.47×3.61
0.68×0.40.53×0.70.18×0.7916.7×6.7
一、口算。
0.3×2=3×0.2=0.02×100=60.5÷1000=
0.059×10=20×0.7=0.04×0.5=1.6×0.3=
0.4×5=2×0.6=0.2×1000=4.6÷100=
6.5×10=0.09×0.6=0.09×300=0.12×40=
二、列竖式计算。
8.7×0.024.3×8.90.13×0.15.8×1.85
2.6×0.083.1×9.90.66×6.20.3×5.8
61×0.59.4×2.55.9×0.248.9×9.27
0.98×0.078.8×0.630.99×0.393.01×0.17
一、口算。
0.7×5=6×0.6=0.1×100=0.005÷100=
2.07×100=60×0.06=0.06×0.05=0.2×800=
0.4×5=9×0.4=0.4×100=0.43÷1000=
0.12×1000=0.09×0.2=0.003×0.8=0.2×200=
二、列竖式计算。
0.13×0.090.86×90.75×0.780.6×8.85
0.26×0.030.56×0.170.73×0.286.4×2.63
490×0.035×8.80.64×77.1×35.2
0.87×0.35.2×0.660.11×0.562.43×0.68
一、口算。
0.8×3=8×0.6=0.05×1000=1.42÷100=
0.518×100=0.05×0.09=0.002×0.07=0.03×0.07=
0.3×9=2×0.9=0.6×100=27.3÷1000=
4.47×10=0.8×0.09=0.01×5=1.2×3=
二、列竖式计算。
0.82×0.060.78×0.883×2.13.8×33.7
0.87×0.60.2×0.163.3×10.58×9.08
4400×0.020.27×0.720.42×0.250.11×4.13
6.2×0.40.27×0.990.46×0.416.26×0.76
一、口算。
0.5×7=7×0.8=0.006×100=9.49÷100=
0.557×100=70×0.04=0.4×400=0.03×400=
0.9×9=3×0.9=0.005×10=38÷10=
15×1000=8×0.9=0.8×20=0.07×80=
二、列竖式计算。
4.6×0.73.9×6.34.7×1.73.7×92.7
4.8×0.029.2×0.40.72×4.80.13×1.1
0.86×0.59.6×4.10.75×0.894.9×6.83
0.64×0.90.39×3.45.3×0.3279.2×2.1
一、口算。
0.6×2=9×0.7=0.09×10=0.388÷100=
2.5×10=0.03×0.03=0.6×2=0.06×50=
0.9×3=9×0.4=0.2×100=8.19÷10=
5.89×1000=0.4×0.02=0.2×0.9=0.07×0.7=
二、列竖式计算。
0.43×0.030.96×6.56.1×4.64.9×1.72
0.69×0.37.6×2.30.5×0.389.9×55
840×0.60.43×0.580.23×0.874×5.3
1.4×0.34.9×2.50.51×0.122.34×3.2
一、口算。
0.6×3=7×0.2=0.002×100=0.635÷1000=
0.977×100=0.02×0.9=0.003×0.07=2×0.04=
0.6×9=9×0.6=0.08×100=0.245÷10=
0.361×100=2×0.08=0.8×9=0.07×0.05=
二、列竖式计算。
0.88×0.48.4×0.480.49×4.70.24×5.48
6.4×0.50.65×0.10.16×4.64.6×25.4
8.5×0.076.8×80.32×5.18.4×93.9
0.56×0.30.85×3.60.13×0.2497.7×0.57
一、口算。
0.1×7=7×0.8=0.004×10=0.57÷10=
89.8×1000=7×0.4=0.8×7=0.9×30=
0.1×9=5×0.8=0.006×100=8.98÷1000=
2.02×100=90×0.4=0.004×0.04=1.4×3=
二、列竖式计算。
1.2×0.030.89×0.651.5×6.30.19×5.06
9.4×0.94.6×4.70.74×9.58.8×10.9
440×0.061.5×7.79.4×0.270.39×89.2
0.27×0.049.3×1.40.47×2.624.8×0.13
一、口算。
0.5×4=5×0.8=0.3×100=49.5÷100=
0.835×100=0.01×0.08=0.8×0.7=0.06×0.05=
0.7×5=7×0.9=0.5×1000=14.7÷10=
6.64×10=0.06×0.8=0.003×5=1.5×90=
二、列竖式计算。
0.93×0.070.99×30.71×0.510.45×13.9
6.1×0.050.91×8.77.7×9.40.46×47.1
98×0.076.6×5.90.72×44.4×14.6
0.83×0.80.55×60.74×0.11.78×3.8
一、口算。
0.2×5=2×0.9=0.08×1000=0.462÷100=
3.3×100=0.06×0.05=0.006×60=1.7×80=
0.2×4=3×0.4=0.006×1000=9.2÷10=
2.3×10=60×0.8=0.3×90=1.1×0.02=
二、列竖式计算。
3.9×0.71.7×0.19×0.538.3×85.2
1.1×0.20.39×0.396×4.49.2×7.72
11×0.76.2×0.146×0.720.4×22.5
0.65×0.78.7×0.979.7×8.386.6×0.31
一、口算。
0.2×5=5×0.3=0.004×100=58.9÷100=
4.4×10=0.5×0.03=0.005×200=0.04×4=
0.5×4=4×0.6=0.08×100=6.25÷10=
47.4×1000=0.08×0.4=0.1×300=1.2×7=
二、列竖式计算。
2.3×0.48.2×0.410.19×0.627.7×4.97
3.3×0.046.8×3.33.1×0.580.79×7.72
690×0.060.1×0.710.49×0.384×7.57
3.5×0.070.88×0.172.7×0.230.5×0.55
一、口算。
0.9×2=3×0.3=0.5×100=51.8÷10=
91.1×1000=0.09×0.07=0.7×6=0.2×0.4=
0.1×3=9×0.3=0.03×1000=47.8÷10=
81.5×1000=6×0.4=0.6×5=0.3×90=
二、列竖式计算。
9.1×0.76.6×2.57.3×50.86×11.8
8.7×0.20.68×0.420.62×4.68.8×4.39
5800×0.083.2×3.98.2×1.10.66×53.9
0.18×0.056.8×1.40.32×0.679.4×0.78
一、口算。
0.8×6=3×0.9=0.007×1000=0.388÷10=
0.774×10=50×0.08=0.5×0.2=0.1×40=
0.1×7=9×0.5=0.008×100=0.4÷100=
20.7×1000=50×0.8=0.001×0.9=0.15×40=
二、列竖式计算。
2.2×0.057.8×0.410.19×0.311.1×24.5
0.75×0.070.97×0.610.7×9.67.4×3.83
6.2×0.025.2×78.6×6.91.5×92.3
1.4×0.094.8×4.84.7×7.238.9×0.15
一、口算。
0.5×4=3×0.5=0.004×100=2.1÷100=
14.5×10=0.1×0.3=0.04×0.07=0.06×0.09=
0.3×4=2×0.2=0.03×1000=2.61÷1000=
52.7×100=1×0.07=0.4×30=0.12×200=
二、列竖式计算。
0.99×0.35×0.859.3×1.39.3×12.1
0.93×0.50.89×3.63.3×0.48.8×8.07
6600×0.070.99×0.210.37×0.121.8×98.2
0.67×0.78.3×0.230.29×0.415.33×3.8
一、口算。
0.1×3=7×0.2=0.08×1000=0.065÷100=
0.786×10=0.07×0.07=0.06×0.08=0.8×0.5=
0.3×3=9×0.6=0.004×10=0.04÷100=
0.768×1000=4×0.03=0.09×0.7=0.19×0.4=
二、列竖式计算。
0.77×0.98.9×9.90.57×0.390.46×2.1
5.3×0.090.78×0.520.76×8.10.48×8.68
3.5×0.047.6×0.860.77×7.76×22.1
0.12×0.044.3×4.32.7×848.9×0.75
一、口算。
0.6×3=6×0.2=0.002×10=6.18÷10=
35.6×100=40×0.9=0.4×4=1×6=
0.8×3=5×0.2=0.006×10=60÷10=
0.94×10=2×0.8=0.009×90=0.03×70=
二、列竖式计算。
3.2×0.081.4×5.63.4×7.40.39×90.4
4.5×0.60.15×0.419.2×70.75×8.7
5.5×0.50.68×4.19.7×4.10.83×70
0.71×0.056×8.90.68×0.4141.8×0.16
一、口算。
0.1×4=3×0.3=0.002×10=0.276÷100=
63.5×1000=50×0.08=0.7×8=0.01×0.4=
0.5×7=9×0.8=0.001×1000=21÷10=
85.3×100=90×0.8=0.005×0.07=0.07×0.8=
二、列竖式计算。
4.1×0.53.4×0.78.1×0.238.7×3.24
2.2×0.80.79
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