北师大版四年级数学下册第三单元小数乘法专项练习题115.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115.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115
一、口算。
0.1×5=3×0.3=0.06×1000=1.1÷100=
1.85×100=0.05×0.07=0.3×50=1.7×0.03=
0.4×5=5×0.2=0.09×100=3.55÷1000=
0.57×10=0.6×0.05=0.007×9=0.15×0.7=
二、列竖式计算。
0.31×0.053.4×5.78.7×5.74.5×9.68
5.7×0.78.6×0.864.3×4.60.56×22.2
5500×0.98.6×8.81.1×0.720.2×19.4
0.64×0.35.2×1.92.4×0.742×4.9
一、口算。
0.8×6=7×0.3=0.03×10=0.613÷100=
9.37×1000=3×0.09=0.06×70=0.19×90=
0.4×8=6×0.8=0.3×1000=81.6÷10=
0.416×1000=0.8×0.4=0.005×70=0.9×700=
二、列竖式计算。
0.22×0.090.66×0.440.34×8.30.92×67.3
0.59×0.60.83×0.33.5×77.2×2.95
9.7×0.020.73×0.970.84×0.763.5×28.7
0.62×0.024.1×3.12×0.874.69×8
一、口算。
0.8×3=2×0.6=0.003×1000=0.312÷10=
3.06×10=0.09×0.2=0.6×500=0.18×6=
0.1×3=6×0.4=0.07×10=0.034÷100=
0.378×10=0.02×0.4=0.02×0.7=0.01×0.08=
二、列竖式计算。
5.6×0.97×1.98.9×0.478.5×1.98
0.85×0.033.5×7.32.5×0.150.69×8.29
84×0.70.84×0.680.35×0.462.9×68.1
0.16×0.80.11×4.31.2×3.37.24×0.41
一、口算。
0.3×4=6×0.6=0.6×10=0.14÷1000=
0.242×1000=0.05×0.8=0.008×0.09=2×0.2=
0.1×7=3×0.2=0.05×100=97.2÷100=
0.442×10=9×0.09=0.08×9=1.2×40=
二、列竖式计算。
0.12×0.80.28×0.890.57×0.454×3.77
0.66×0.60.62×9.56.5×0.340.41×36.3
0.35×0.090.29×0.891.7×0.216.6×46.2
0.72×0.053.5×7.30.92×0.272.48×3.8
一、口算。
0.8×5=7×0.2=0.02×10=0.587÷10=
0.56×10=4×0.06=0.008×800=0.5×500=
0.2×7=8×0.7=0.02×10=4.01÷10=
0.571×10=1×0.4=0.6×0.07=0.4×0.6=
二、列竖式计算。
7.3×0.070.3×4.14.2×0.956.7×8.88
3.4×0.090.88×0.970.88×3.46.9×61.7
2200×0.080.12×9.20.48×0.160.56×8.63
0.37×0.032.7×2.40.11×0.3372.5×0.72
一、口算。
0.5×4=8×0.8=0.005×1000=0.247÷100=
87.8×10=0.5×0.02=0.006×0.02=1.4×700=
0.8×2=8×0.5=0.1×1000=0.646÷10=
7.63×10=0.03×0.8=0.007×80=1.2×20=
二、列竖式计算。
5.7×0.090.85×2.30.22×8.24.2×27.1
0.38×0.80.44×3.15.5×2.35.1×5.91
4.8×0.097.8×9.90.83×4.80.72×9.75
3.7×0.30.99×0.820.74×0.9172.7×5.6
一、口算。
0.6×5=5×0.5=0.004×1000=86.8÷10=
8.38×1000=0.7×0.03=0.7×0.5=0.9×9=
0.9×3=9×0.4=0.005×10=0.48÷1000=
4.16×10=0.01×0.2=0.4×900=0.11×2=
二、列竖式计算。
0.79×0.030.18×7.39.4×9.46.6×8.9
0.45×0.61.2×0.732.2×3.90.32×6.16
9700×0.083.6×6.10.75×5.79.5×3.08
0.64×0.027.6×3.60.82×0.5570.5×0.62
一、口算。
0.5×4=4×0.6=0.005×100=3.7÷100=
7.67×1000=0.05×0.09=0.9×0.7=0.17×0.8=
0.7×7=7×0.4=0.3×10=0.369÷100=
4.89×10=30×0.8=0.04×0.6=0.02×3=
二、列竖式计算。
0.58×0.053.6×4.30.82×8.44×67.5
2.8×0.70.77×6.43.4×0.23.2×37.7
760×0.021.5×0.225.6×3.67.4×7.31
0.46×0.40.57×8.53.6×8.52.19×9.6
一、口算。
0.3×3=8×0.6=0.01×10=7.57÷100=
0.687×10=0.05×0.03=0.003×8=0.08×0.07=
0.5×2=3×0.7=0.005×1000=0.423÷100=
5.1×100=6×0.07=0.09×0.9=0.19×70=
二、列竖式计算。
4.3×0.080.73×7.86.2×0.220.66×29
0.95×0.070.79×61.3×4.53×68.1
6400×0.44.7×70.69×2.29.5×8.82
5.2×0.41.3×9.60.83×78.72×0.28
一、口算。
0.2×5=6×0.4=0.04×1000=4.54÷10=
35.8×10=0.4×0.07=0.07×5=0.03×50=
0.3×4=3×0.6=0.002×1000=85.4÷100=
0.683×10=8×0.2=0.02×0.06=1.1×8=
二、列竖式计算。
0.94×0.058.2×1.97.2×8.20.67×2.53
0.25×0.035.1×0.390.32×0.819.6×6.35
5400×0.070.47×0.30.93×0.780.27×4.4
0.89×0.040.12×9.99.2×7.540.5×7.5
一、口算。
0.9×8=8×0.6=0.04×10=0.48÷100=
7.5×10=8×0.09=0.003×0.07=1.4×3=
0.6×8=3×0.9=0.7×10=0.409÷100=
0.38×100=60×0.9=0.05×0.3=0.8×2=
二、列竖式计算。
0.17×0.98.7×0.530.37×6.23.3×58.2
0.98×0.57.1×2.90.76×0.60.82×73.1
1300×0.64.2×0.213×45.5×1.73
0.57×0.020.53×6.35.5×0.8778.9×0.29
一、口算。
0.5×6=3×0.2=0.04×10=1.18÷10=
16.5×100=0.2×0.3=0.003×30=0.09×0.8=
0.9×8=6×0.8=0.01×1000=0.156÷1000=
7.11×1000=20×0.07=0.08×4=0.09×90=
二、列竖式计算。
3.8×0.80.8×0.872.3×0.419.6×3.61
8.7×0.080.84×1.30.26×0.231.1×9.16
0.51×0.
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