北师大版四年级数学下册第三单元小数乘法专项练习题109.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109
一、口算。
0.7×2=3×0.2=0.09×10=15.8÷100=
0.87×10=9×0.02=0.1×4=0.2×9=
0.9×4=7×0.3=0.001×1000=0.805÷100=
0.465×1000=2×0.9=0.1×6=0.6×60=
二、列竖式计算。
4.6×0.044.4×0.230.25×0.787.1×38.1
4.3×0.080.93×1.90.6×6.26.5×15.5
8100×0.040.71×0.880.59×0.46.2×5.33
0.38×0.024.9×4.98×51.65×3.9
一、口算。
0.7×3=7×0.5=0.09×10=83.4÷100=
0.036×10=0.7×0.4=0.006×20=0.17×200=
0.3×5=5×0.5=0.002×10=0.98÷100=
9.51×1000=7×0.06=0.005×3=2×500=
二、列竖式计算。
9.3×0.065.7×0.439.1×80.59×7.87
0.92×0.70.93×4.17.3×4.30.94×69.9
67×0.054×0.726.4×0.867×5.55
3.3×0.030.86×0.420.58×0.152.8×0.81
一、口算。
0.6×3=9×0.9=0.008×100=0.1÷10=
98.1×10=0.05×0.6=0.006×0.05=0.18×0.4=
0.1×8=6×0.2=0.07×10=46.4÷1000=
13.5×100=3×0.4=0.3×0.4=0.12×30=
二、列竖式计算。
2.7×0.60.21×7.79.2×0.680.51×1.79
9.7×0.090.71×9.27.5×7.60.74×7.7
340×0.26.3×86.5×0.697×3.84
0.78×0.94.9×8.58.2×3.31.62×6.2
一、口算。
0.4×7=7×0.6=0.003×10=39.8÷10=
66.5×10=0.4×0.07=0.02×0.5=0.01×0.4=
0.8×8=3×0.9=0.007×10=0.909÷10=
21.5×10=0.6×0.8=0.05×60=0.2×300=
二、列竖式计算。
0.62×0.99.4×7.20.75×8.70.2×8.56
1.1×0.090.13×2.60.16×2.80.42×7.85
0.12×0.80.75×0.980.73×3.10.74×1.77
0.93×0.050.46×0.214.5×6.75.61×0.45
一、口算。
0.4×6=3×0.3=0.06×1000=17.4÷10=
9.83×100=90×0.05=0.05×0.06=1.4×0.8=
0.1×2=5×0.5=0.01×100=96.7÷100=
0.195×100=20×0.03=0.006×60=0.6×7=
二、列竖式计算。
0.14×0.29.4×3.20.87×1.56.2×2.85
0.65×0.81.4×0.643.6×5.83.6×61.7
3.4×0.60.92×7.62.4×0.360.92×17.8
3.9×0.054.8×0.878.6×6.38.42×0.29
一、口算。
0.6×6=3×0.7=0.005×1000=3.51÷100=
1×1000=4×0.8=0.9×50=1.8×5=
0.2×9=3×0.2=0.02×10=3.58÷100=
8.62×1000=0.09×0.07=0.02×0.8=0.8×70=
二、列竖式计算。
0.36×0.80.54×0.128.7×0.535×4.98
0.27×0.080.88×0.181.4×4.81.2×2.65
9700×0.76.4×80.23×3.30.4×90.5
0.83×0.030.25×2.61.8×0.6480.9×0.69
一、口算。
0.3×6=8×0.9=0.005×100=55.8÷100=
6.56×100=4×0.06=0.04×0.03=0.03×0.03=
0.3×2=8×0.3=0.4×100=5.06÷10=
4.05×10=6×0.7=0.005×0.07=0.09×0.7=
二、列竖式计算。
6.1×0.49.4×0.410.76×0.620.89×69.8
0.45×0.060.17×70.81×4.47×23.1
0.22×0.046.5×6.90.66×7.90.65×7.06
0.43×0.38.8×20.3×0.537.4×0.59
一、口算。
0.3×9=6×0.4=0.02×100=9.09÷100=
93.2×10=0.03×0.08=0.09×500=1.6×0.02=
0.3×6=9×0.3=0.08×100=89÷1000=
68.6×10=7×0.4=0.008×0.07=0.14×0.09=
二、列竖式计算。
0.62×0.040.55×8.10.21×0.250.4×15.1
0.61×0.95.2×4.50.42×9.17.1×6.82
56×0.39.4×7.83.1×9.40.19×14.7
0.56×0.67.7×3.48×9.84.67×9.1
一、口算。
0.1×4=6×0.6=0.1×10=99.3÷1000=
28.3×1000=0.05×0.05=0.004×500=0.05×4=
0.7×8=4×0.3=0.7×100=0.357÷1000=
7.61×100=0.05×0.6=0.05×7=1.2×0.5=
二、列竖式计算。
0.44×0.062.3×1.61×0.260.53×1.31
8.9×0.020.21×5.20.96×5.35.5×29.9
8500×0.051.8×1.49.5×0.924.9×3.77
0.32×0.030.2×0.510.74×0.6183.8×2.4
一、口算。
0.1×5=5×0.8=0.002×100=64.2÷1000=
0.549×10=0.7×0.6=0.3×0.05=0.12×6=
0.4×9=2×0.4=0.09×100=82÷100=
57.2×10=0.08×0.09=0.006×300=0.2×800=
二、列竖式计算。
0.11×0.83.2×0.976.6×8.59.8×28.2
7.4×0.067.1×0.880.36×6.37.5×93.1
0.68×0.87.6×0.881.3×7.76.6×4.83
3.5×0.070.4×0.590.65×0.3160.5×9.4
一、口算。
0.1×4=3×0.4=0.03×100=0.873÷100=
67.1×1000=2×0.02=0.05×0.5=0.6×0.06=
0.8×8=4×0.2=0.07×100=0.27÷1000=
80.8×1000=3×0.9=0.03×2=0.06×0.6=
二、列竖式计算。
6.8×0.84.5×0.585.3×5.56.1×67.3
2.5×0.031.1×0.330.15×4.54.2×70.8
7.7×0.074.6×0.260.55×8.60.42×7.28
0.94×0.97.5×5.70.79×0.73.39×6.4
一、口算。
0.1×8=7×0.5=0.06×10=6.75÷100=
4.66×1000=0.06×0.6=0.002×800=0.01×9=
0.2×3=7×0.4=0.05×100=0.52÷10=
2.82×1000=4×0.2=0.05×30=0.03×20=
二、列竖式计算。
0.63×0.020.79×0.754.6×8.53.4×1.97
0.22×0.030.76×0.830.84×9.70.16×44.8
910×0.024.4×0.970.13×8.70.95×20.7
0.63×0.040.59×0.578.3×0.3278.3×0.84
一、口算。
0.5×5=7×0.5=0.8×1000=26.6÷10=
9.47×100=0.04×0.07=0.06×0.04=1.1×60=
0.2×3=6×0.7=0.9×1000=9.12÷10=
74×1000=0.05×0.7=0.5×90=1.4×800=
二、列竖式计算。
9.5×0.70.55×0.490.1×1.10.16×56.6
7.1×0.080.48×1.90.41×6.51.8×53.5
41×0.54×7.10.73×2.56.1×1.1
4.1×0.036.9×4.29.9×2.740.2×0.17
一、口算。
0.3×6=8×0.6=0.004×100=0.49÷1000=
0.714×100=0.5×0.5=0.006×0.9=1.9×300=
0.2×5=6×0.9=0.008×1000=0.921÷100=
5.01×100=0.03×0.5=0.006×700=0.04×600=
二、列竖式计算。
0.71×0.039.8×0.560.2×0.910.84×50
9.5×0.030.23×0.88.3×45.9×25.4
3.4×0.91.1×0.164.7×0.442.5×5.95
1.7×0.039×0.130.99×1.497.2×0.15
一、口算。
0.2×2=2×0.6=0.002×100=4.33÷100=
96.7×1000=9×0.02=0.8×0.3=1.7×200=
0.3×7=6×0.3=0.3×10=0.646÷1000=
70.8×1000=0.07×0.8=0.03×0.5=0.16×600=
二、列竖式计算。
0.71×0.024.8×60.94×0.230.78×71.3
1.9×0.030.74×2.92.6×3.40.22×1.47
59×0.61×9.20.29×2.71.7×8.3
6.5×0.27.6×0.874.9×0.197.29×0.73
一、口算。
0.6×9=7×0.4=0.3×1000=0.81÷10=
7.3×10=50×0.4=0.4×3=0.05×40=
0.5×9=7×0.2=0.4×10=78.9÷10=
0.91×1000=30×0.08=0.09×700=0.16×0.6=
二、列竖式计算。
4.9×0.090.86×0.346.7×2.40.69×81
2.5×0.29.7×0.260.4×0.855.4×45.3
0.93×0.35.9×3.55.6×0.440.18×4.73
5.1×0.92.7×8.90.82×9.24.67×0.97
一、口算。
0.7×9=4×0.9=0.7×1000=52.8÷1000=
17.2×1000=0.8×0.8=0.03×6=0.05×50=
0.9×4=6×0.5=0.9×10=9.06÷10=
62.2×100=0.04×0.9=0.02×3=0.3×0.08=
二、列竖式计算。
0.17×0.56.7×0.993.1×32.5×59.4
0.91×0.60.77×6.25.6×0.595.8×37.4
240×0.079.9×0.972.3×6.20.43×98.3
9.5×0.80.53×8.90.66×0.3566.9×0.12
一、口算。
0.2×3=9×0.4=0.02×1000=0.947÷10=
0.471×10=0.07×0.5=0.06×4=0.02×0.4=
0.4×8=2×0.2=0.009×1000=6.6÷100=
9.7×100=40×0.07=0.008×0.05=1.4×70=
二、列竖式计算。
0.44×0.50.39×1.70.56×0.790.48×6.26
1.1×0.025.1×6.10.56×0.330.61×5.87
0.45×0.30.94×1.59.4×2.39.4×5.36
0.83×0.047.7×0.696.5×3.251.3×9.9
一、口算。
0.4×8=8×0.7=0.07×10=4.51÷100=
2.58×10=0.03×0.3=0.05×0.06=0.8×0.08=
0.3×5=5×0.4=0.004×1000=71÷1000=
0.75×10=90×0.09=0.007×0.9=0.04×300=
二、列竖式计算。
0.25×0.40.62×0.468×1.43.8×20.3
0.14×0.030.77×0.420.93×0.395.9×7.57
860×0.098.9×78.1×0.67.3×6.62
8.5×0.080.41×6.30.95×0.154.82×4.5
一、口算。
0.8×2=9×0.9=0.05×100=92.1÷10=
70.6×100=0.2×0.2=0.001×60=0.06×5=
0.9×2=8×0.4=0.03×100=0.089÷10=
0.26×1000=70×0.09=0.09×700=0.1×0.5=
二、列竖式计算。
0.83×0.028.2×4.80.3×1.46.1×40.2
0.68×0.40.46×1.10.7×0.659.6×55.2
6.7×0.040.3×4.83.8×0.70.37×50.8
1.1×0.60.79×1.67.5×0.7934.2×8.8
一、口算。
0.6×3=5×0.5=0.004×100=8.79÷100=
0.038×1000=0.8×0.4=0.002×40=1.5×900=
0.5×6=9×0.5=0.2×10=79.3÷1000=
0.062×100=1×0.8=0.03×0.3=0.12×50=
二、列竖式计算。
0.52×0.093.5×7.16.7×0.748×30.7
1.6×0.45.7×20.69×0.370.49×1.72
1.6×0.050.31×8.90.56×3.79.3×78.7
0.25×0.021.2×9.80.33×0.62.03×0.23
一、口算。
0.1×6=5×0.3=0.008×10=9.89÷10=
6.95×10=0.1×0.03=0.2×80=1.3×9=
0.8×9=2×0.7=0.05×1000=4.15÷1000=
0.866×10=20×0.2=0.6×0.06=0.17×4=
二、列竖式计算。
8.9×0.59.4×0.339.1×0.650.88×5.73
7.3×0.93×0.570.63×0.22.9×4.01
93×0.090.81×0.772×0.69.8×1.82
9.6×0.86.7×5.65.4×7.17.91×0.29
一、口算。
0.9×4=8×0.7=0.003×1000=0.414÷100=
0.667×1000=6×0.07=0.002×70=1.2×400=
0.6×9=6×0.5=0.7×100=0.612÷1000=
5.71×10=0.7×0.5=0.4×0.05=0.5×0.4=
二、列竖式计算。
6.4×0.050.41×0.170.2×1.44×6.01
9.8×0.47.2×4.37.3×0.931.1×9.26
2.2×0.076.8×0.170.53×0.463.7×9.49
0.53×0.20.17×8.12×0.288.16×5.1
一、口算。
0.7×9=7×0.8=0.9×10=0.615÷1000=
64.1×1000=0.02×0.2=0.2×50=0.09×300=
0.5×3=3×0.4=0.6×100=0.705÷100=
0.18×10=0.03×0.9=0.04×0.5=0.5×400=
二、列竖式计算。
0.91×0.070.72×4.25.8×8.88.8×75.8
0.98×0.