北师大版四年级数学下册第三单元小数乘法专项练习题108.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108.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108
一、口算。
0.2×5=5×0.4=0.06×10=0.263÷10=
0.947×100=0.7×0.02=0.004×40=0.09×6=
0.6×2=9×0.3=0.08×10=1.43÷1000=
8.96×1000=5×0.03=0.001×50=0.19×0.02=
二、列竖式计算。
5.3×0.60.76×8.40.24×0.350.38×47.8
6.7×0.020.36×2.77.4×0.784.5×45.9
85×0.30.59×6.30.47×0.310.84×3.94
0.54×0.31×3.90.13×0.4643×3.1
一、口算。
0.9×5=6×0.3=0.003×100=0.848÷1000=
8.44×1000=3×0.02=0.2×0.04=0.2×400=
0.3×3=6×0.2=0.1×10=71.1÷10=
4.82×100=0.08×0.6=0.006×400=0.06×0.7=
二、列竖式计算。
5.5×0.090.22×7.18.9×4.80.84×83.3
7.8×0.64.9×0.438.9×0.726.6×25.2
28×0.50.85×4.33.5×0.287.5×73.7
0.33×0.087.5×5.52.9×0.934.63×0.58
一、口算。
0.9×3=8×0.2=0.6×100=0.276÷10=
63.7×1000=70×0.3=0.07×0.6=0.1×300=
0.3×5=8×0.5=0.09×100=66÷1000=
67.3×10=5×0.03=0.8×300=0.1×30=
二、列竖式计算。
4.4×0.73.2×5.10.37×0.582.3×73.5
0.29×0.090.66×89.5×7.12×59
78×0.39×4.10.1×2.10.27×4.47
0.26×0.064.3×0.610.74×0.1223.8×7.3
一、口算。
0.2×9=4×0.8=0.06×1000=6.03÷10=
9.14×100=0.07×0.8=0.06×20=1.7×0.8=
0.8×6=9×0.6=0.006×100=6.79÷1000=
2.49×10=30×0.7=0.06×700=0.18×90=
二、列竖式计算。
0.81×0.056.2×0.40.17×0.463.5×5.87
2.7×0.45×0.540.89×2.20.11×25.7
830×0.20.94×9.30.29×0.650.35×51.7
2.2×0.050.24×0.781×0.7118.6×3.2
一、口算。
0.7×5=9×0.7=0.006×100=65.7÷10=
21.4×1000=0.01×0.07=0.005×0.4=0.13×200=
0.3×6=8×0.6=0.002×100=86.2÷10=
0.252×1000=50×0.2=0.1×20=0.8×0.08=
二、列竖式计算。
7.9×0.30.35×4.37.9×65.4×11
5.9×0.050.43×0.870.73×5.51.2×92.1
42×0.031.6×6.27.7×1.72.1×4.18
0.64×0.67.9×4.34.7×6.65.22×0.46
一、口算。
0.6×2=6×0.5=0.06×10=14.2÷10=
1.32×10=50×0.9=0.005×500=0.17×4=
0.6×5=8×0.4=0.05×10=17.8÷1000=
0.954×1000=2×0.3=0.1×50=0.4×0.4=
二、列竖式计算。
0.47×0.087.8×0.430.83×0.670.39×9.19
0.48×0.50.63×4.45.3×4.14×2.32
81×0.064.9×7.60.8×2.41.9×34.7
0.58×0.90.53×1.50.72×8.43.95×0.53
一、口算。
0.2×8=7×0.4=0.3×10=8.09÷100=
0.27×10=2×0.7=0.01×0.9=1.2×3=
0.7×7=2×0.6=0.8×100=71.8÷100=
6.48×100=0.8×0.6=0.009×9=0.08×0.4=
二、列竖式计算。
0.31×0.070.8×9.20.74×0.281.2×57.8
0.36×0.082.8×2.80.36×2.40.85×4.33
2600×0.070.62×7.60.8×5.10.34×16.2
7.1×0.90.37×0.83.4×6.533.7×0.93
一、口算。
0.3×8=6×0.9=0.9×1000=48.9÷100=
7.78×100=20×0.06=0.001×60=1.3×70=
0.4×9=6×0.2=0.08×10=85.1÷10=
29.2×10=8×0.05=0.06×0.02=0.13×0.07=
二、列竖式计算。
5.3×0.42×0.820.24×2.80.92×37.3
0.41×0.070.8×6.67.4×8.85.1×2.67
0.38×0.050.91×3.20.79×0.552.5×7.74
8.6×0.86.3×0.657×0.816.28×0.46
一、口算。
0.8×4=8×0.6=0.8×1000=0.094÷100=
0.585×10=0.02×0.05=0.08×400=0.16×60=
0.5×3=3×0.8=0.4×100=1.54÷1000=
1.5×10=10×0.7=0.9×900=0.03×0.04=
二、列竖式计算。
0.86×0.041×0.254.4×6.26.6×30.6
8.4×0.090.88×0.90.49×0.330.43×1.58
9.3×0.073.3×0.829.5×1.50.89×7.14
0.66×0.070.86×4.45.8×7.816.1×4.3
一、口算。
0.9×5=8×0.6=0.1×1000=81.5÷100=
0.706×100=5×0.8=0.08×500=0.2×0.3=
0.2×5=6×0.6=0.03×1000=60.9÷100=
6.08×10=0.1×0.04=0.009×0.05=0.2×80=
二、列竖式计算。
0.83×0.53.7×2.70.71×0.950.48×53
8.3×0.039.2×8.30.69×0.513.8×7.8
8.1×0.40.41×0.496.6×9.80.29×17.8
0.27×0.050.18×0.920.83×0.463.9×0.46
一、口算。
0.8×7=5×0.5=0.02×100=6.08÷100=
53.4×1000=50×0.6=0.004×8=0.1×0.03=
0.2×5=7×0.7=0.006×1000=0.349÷10=
84.8×1000=80×0.6=0.004×8=0.06×0.5=
二、列竖式计算。
1.9×0.028.1×7.80.93×0.550.13×81.6
0.91×0.069.5×0.850.65×0.843.1×5.34
760×0.070.78×0.911×0.528×48.4
4.2×0.62×7.32×0.4612×6.3
一、口算。
0.1×8=8×0.8=0.04×1000=6.5÷1000=
0.473×1000=4×0.8=0.8×800=0.15×300=
0.2×9=7×0.4=0.4×1000=0.748÷100=
0.539×1000=30×0.07=0.2×0.5=1.5×2=
二、列竖式计算。
0.52×0.080.4×0.350.48×0.710.63×83.4
0.67×0.40.67×0.558.2×0.571.8×8.95
0.81×0.20.19×7.20.6×4.37.7×5.94
4.7×0.051.1×0.389.3×0.4475.3×1.1
一、口算。
0.3×9=3×0.3=0.6×10=0.463÷10=
80.4×10=2×0.06=0.1×0.09=1.9×0.04=
0.9×3=5×0.8=0.005×10=8.53÷100=
3.06×10=50×0.08=0.08×30=0.07×0.3=
二、列竖式计算。
9.6×0.070.77×0.161×0.387.7×24.4
5.2×0.066.5×0.924.8×0.10.94×31.2
2700×0.040.43×0.82.1×0.963.3×3.42
0.75×0.046.5×4.40.23×0.257.36×2.3
一、口算。
0.6×6=8×0.9=0.01×100=2.86÷1000=
6.78×1000=80×0.5=0.06×4=1.4×5=
0.4×2=8×0.3=0.007×10=5.2÷100=
0.313×10=90×0.2=0.4×0.4=0.2×0.04=
二、列竖式计算。
4.2×0.020.77×4.61.9×6.70.43×6.55
0.99×0.90.82×4.79.9×0.268.4×4.41
630×0.40.91×0.951.5×9.30.6×27.9
5.2×0.060.51×4.15.4×0.7886.5×7.2
一、口算。
0.1×9=5×0.5=0.02×10=16.6÷1000=
0.747×100=0.06×0.3=0.008×600=0.06×900=
0.7×7=3×0.9=0.01×1000=0.88÷1000=
7.35×1000=8×0.02=0.9×2=1.2×0.06=
二、列竖式计算。
1.6×0.081×0.838.8×0.134×9.12
0.89×0.38.4×0.845.1×3.47.8×4.35
4300×0.076.7×0.541.4×0.820.37×92.3
1.8×0.030.92×0.150.3×0.4748.8×0.42
一、口算。
0.6×7=3×0.4=0.003×1000=1.4÷1000=
0.446×100=1×0.02=0.4×0.07=0.6×0.7=
0.5×8=4×0.8=0.05×10=0.696÷100=
8.87×100=7×0.08=0.7×30=0.19×0.8=
二、列竖式计算。
0.17×0.091.4×1.10.34×0.836.8×7.43
4.9×0.098.2×0.292×0.320.91×5.63
16×0.26.9×77.1×0.442.2×94.4
9.4×0.060.83×0.874.5×8.847.2×0.69
一、口算。
0.5×5=5×0.4=0.8×10=0.783÷100=
0.451×10=3×0.03=0.004×0.7=0.19×2=
0.1×6=4×0.8=0.02×10=0.627÷100=
5.51×100=0.3×0.5=0.007×80=0.18×0.9=
二、列竖式计算。
6.1×0.064×0.882.4×4.40.83×33.8
0.23×0.056.6×2.83.8×4.90.49×2.18
0.16×0.86.8×0.410.81×0.151.7×83.6
0.42×0.20.83×8.66.2×5.45.36×0.8
一、口算。
0.8×8=9×0.9=0.3×10=90÷1000=
0.047×100=40×0.05=0.007×2=0.19×50=
0.4×4=4×0.8=0.07×100=4.23÷10=
24.4×1000=6×0.07=0.09×200=0.8×900=
二、列竖式计算。
9.6×0.20.51×0.732.5×0.91.7×1.43
9.6×0.40.46×0.217.9×0.250.57×33.6
89×0.60.53×9.76.6×0.93.9×61.4
0.99×0.099.9×0.731.8×0.899.2×4
一、口算。
0.3×6=8×0.4=0.08×10=7.49÷10=
0.559×10=8×0.4=0.07×0.04=1.1×0.04=
0.1×8=7×0.6=0.1×1000=14.2÷10=
0.056×100=0.05×0.02=0.08×40=1.8×0.4=
二、列竖式计算。
5.8×0.070.74×0.619.2×0.491.2×13.1
1.6×0.020.98×8.20.6×8.10.3×5.48
150×0.70.57×4.55.8×0.810.97×1.85
0.18×0.020.13×0.777.8×0.995.95×1.9
一、口算。
0.2×7=3×0.6=0.004×100=0.986÷10=
0.992×100=0.9×0.4=0.07×0.09=0.07×0.6=
0.3×7=5×0.6=0.3×100=0.288÷100=
1.64×1000=90×0.6=0.003×0.07=0.7×40=
二、列竖式计算。
0.39×0.90.35×50.67×0.790.2×98.5
4.7×0.050.66×7.40.99×3.10.42×58
570×0.079.2×0.920.73×9.20.29×46.2
0.73×0.070.64×3.96.8×1.56.23×0.85
一、口算。
0.5×3=6×0.5=0.7×100=0.567÷10=
3.52×1000=90×0.3=0.06×0.6=0.06×0.09=
0.8×8=3×0.6=0.006×1000=69.1÷100=
55.1×1000=0.8×0.02=0.5×200=0.13×80=
二、列竖式计算。
0.68×0.075.6×6.20.24×8.20.46×5.8
0.68×0.90.22×9.45.4×1.42×4.5
770×0.60.48×9.14.7×0.528.1×7.64
6.7×0.80.41×7.20.52×2.770.1×0.21
一、口算。
0.1×2=8×0.8=0.001×10=8.87÷100=
0.3×10=50×0.3=0.006×0.04=1.2×90=
0.3×5=3×0.5=0.005×100=0.152÷100=
0.768×1000=20×0.5=0.08×0.04=0.07×0.05=
二、列竖式计算。
0.94×0.30.59×8.50.66×0.360.56×86.7
1.2×0.82.2×0.28.1×0.590.81×7.66
6500×0.48.8×4.80.85×0.760.37×2.42
7.1×0.037.2×4.60.86×8.33.1×0.43
一、口算。
0.3×7=2×0.5=0.08×1000=0.943÷1000=
0.977×100=9×0.5=0.09×300=0.5×0.02=
0.7×2=9×0.2=0.2×1000=0.06÷100=
0.441×10=60×0.2=0.5×700=1×0.8=
二、列竖式计算。
0.91×0.76.1×0.239.7×6.78.3×8.22
6.3×0.050.63×0.650.55×6.99.2×7.57
0.29×0.055.5×0.530.91×7.60.14×6.86
0.73×0.038.5×0.240.62×3.77.36×1.5
一、口算。
0.5×3=9×0.5=0.002×10=5.4÷1000=
6.98×100=4×0.08=0.008×4=0.14×70=
0.3×9=4×0.7=0.09×100=2.99÷100=
71.2×1000=0.07×0.6=0.007×800=1.7×5=
二、列竖式计算。
0.22×0.40.92×8.50.31×0.651.6×6
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