北师大版四年级数学下册第三单元小数乘法专项练习题.doc

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1、一、口算。0.1×8＝5×0.3＝0.003×1000＝0.66÷10＝0.29×10＝0.08×0.9＝0.5×0.09＝0.6×0.5＝0.3×6＝6×0.3＝0.001×1000＝6.66÷10＝0.614×1000＝40×0.2＝0.7×30＝1.7×70＝二、列竖式计算。0.36×0.50.4×7.60.99×4.64.8×7.80.12×0.060.68×0.625.4×0.180.51×28.20.45×0.80.65×8.44.4×7.25.4×3.140.27×0.93.5×5.20.21×6.967.2×0.24一、口算。0.7×2＝9×0.7＝0.8×

2、10＝1.1÷10＝0.203×10＝40×0.07＝0.7×900＝0.07×60＝0.4×9＝7×0.9＝0.02×1000＝3.64÷10＝8.88×100＝0.7×0.06＝0.006×20＝1.1×90＝二、列竖式计算。0.88×0.039.6×0.880.54×0.642.6×560.42×0.076.8×0.320.2×6.50.46×8.761.8×0.20.13×0.50.92×1.30.74×3.390.25×0.66.7×5.48.5×4.29.09×0.86一、口算。0.1×3＝4×0.6＝0.9×10＝3.69÷1000＝31.8×10＝70×0.

3、09＝0.6×0.7＝0.7×90＝0.8×9＝8×0.8＝0.007×10＝11÷10＝91.6×1000＝80×0.08＝0.007×0.03＝0.2×9＝二、列竖式计算。7.6×0.020.38×0.770.64×0.914.7×1.945.9×0.070.13×0.841.6×2.45.4×4.933300×0.44.2×0.70.52×0.396×1.429.1×0.50.55×7.40.22×5.47.93×5.7一、口算。0.6×3＝9×0.7＝0.005×100＝87.1÷100＝2.25×100＝0.6×0.5＝0.07×40＝1.7×0.09＝0.5×5

4、＝5×0.9＝0.8×1000＝81.7÷1000＝96.8×1000＝0.01×0.09＝0.7×4＝0.09×5＝二、列竖式计算。0.18×0.083.1×0.230.8×0.280.26×47.60.98×0.60.7×0.890.71×6.90.2×1.798.1×0.70.55×4.50.99×0.333.9×9.010.67×0.040.39×3.42×3.975.4×8.3一、口算。0.8×4＝9×0.9＝0.3×1000＝0.482÷1000＝6.69×10＝80×0.4＝0.005×6＝0.04×3＝0.9×2＝4×0.3＝0.06×100＝0.308÷1

5、0＝0.05×1000＝1×0.05＝0.001×800＝0.14×0.8＝二、列竖式计算。0.55×0.54.2×6.30.6×8.19.5×3.550.91×0.50.66×2.24.6×2.90.37×8.364500×0.088.1×0.893.5×1.73.5×7.839.6×0.046.3×23.8×6.76.99×6.2一、口算。0.9×7＝3×0.6＝0.009×100＝43.9÷100＝40.7×1000＝6×0.6＝0.008×80＝0.4×600＝0.8×3＝2×0.8＝0.6×10＝0.619÷100＝72.2×1000＝0.03×0.04＝0.9×

6、200＝1.2×0.6＝二、列竖式计算。0.48×0.048.7×0.878.6×2.82.2×3.797.7×0.78.8×1.90.72×0.667.7×5.660.54×0.33.5×0.280.7×9.90.57×69.90.62×0.059.5×0.110.63×9.522.3×6.4一、口算。0.8×8＝3×0.2＝0.1×100＝78.1÷100＝61.5×10＝0.04×0.07＝0.2×3＝0.19×0.06＝0.7×2＝2×0.4＝0.3×100＝13÷100＝0.309×100＝0.06×0.9＝0.8×0.08＝1.9×0.04＝二、列竖式计算。0.

7、44×0.090.1×4.97.5×0.370.36×72.95.3×0.76.1×0.533.7×4.60.27×31.9530×0.72.8×8.60.45×6.20.17×7.282.4×0.099.4×0.652.1×0.273.07×0.18一、口算。0.2×3＝8×0.8＝0.2×100＝0.284÷10＝5.24×10＝70×0.08＝0.001×0.08＝0.17×0.09＝0.3×7＝8×0.7＝0.04×1000＝88.7÷100＝54.8×10＝5×0.2＝0.006×0.7＝1.6×0.07