北师大版四年级数学下册第三单元小数乘法专项练习题102.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102.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102
一、口算。
0.5×4=6×0.9=0.07×100=4.34÷10=
0.075×100=0.04×0.3=0.09×60=0.1×0.8=
0.2×2=8×0.7=0.07×10=98.3÷100=
1.39×1000=90×0.09=0.8×900=1.5×50=
二、列竖式计算。
0.96×0.070.77×2.25.1×2.40.87×81.2
7.2×0.023.1×0.965.3×5.35.5×81.5
16×0.55.6×0.60.88×3.30.79×51.8
6.4×0.89.7×0.810.81×1.229×6.9
一、口算。
0.7×4=3×0.2=0.009×10=6.7÷100=
0.514×1000=0.9×0.9=0.03×80=0.12×0.07=
0.5×3=8×0.6=0.4×1000=0.47÷100=
0.343×100=70×0.7=0.005×0.09=1×5=
二、列竖式计算。
8.3×0.30.94×4.26.3×4.40.92×9.37
0.85×0.50.39×9.70.83×1.50.72×6.98
78×0.068.2×0.429.1×4.40.24×90.7
6.8×0.040.6×3.12.4×8.610.5×0.63
一、口算。
0.3×8=6×0.4=0.005×10=8.31÷1000=
52.2×1000=1×0.8=0.7×200=1.9×0.06=
0.5×8=3×0.3=0.6×100=0.464÷100=
7.1×1000=0.09×0.6=0.01×2=0.14×0.04=
二、列竖式计算。
0.54×0.90.84×9.50.4×1.60.45×5.1
0.91×0.083.5×0.853.6×0.284.2×21
56×0.26.1×0.665.5×0.80.71×7.96
0.77×0.50.21×2.84.7×0.1445.2×0.42
一、口算。
0.6×6=3×0.7=0.4×1000=19.5÷100=
2.53×100=9×0.2=0.008×0.5=0.17×70=
0.3×5=3×0.6=0.6×100=0.775÷100=
2.81×1000=6×0.05=0.06×0.09=1.4×0.4=
二、列竖式计算。
0.95×0.071.9×0.510.79×3.20.59×90.5
0.71×0.60.78×2.18.2×0.826.9×71.3
2.7×0.091.5×0.426.6×0.326.7×9.1
0.42×0.80.16×8.69.9×5.222.7×0.58
一、口算。
0.8×3=2×0.8=0.003×1000=8.26÷1000=
8.73×1000=0.02×0.4=0.01×50=2×8=
0.6×9=4×0.4=0.005×100=0.423÷10=
0.442×1000=0.03×0.5=0.8×7=0.09×70=
二、列竖式计算。
0.12×0.070.2×3.55.4×6.39×87.4
2.5×0.046.5×8.10.7×0.750.94×7.04
56×0.90.86×8.43×0.390.83×68.5
6.4×0.45×0.297.9×9.49×3.6
一、口算。
0.7×7=3×0.4=0.3×10=0.497÷10=
0.423×100=0.02×0.2=0.002×50=0.6×70=
0.3×4=9×0.8=0.3×100=0.476÷10=
0.735×1000=30×0.9=0.01×300=0.09×80=
二、列竖式计算。
1.6×0.068.7×3.24.1×0.366.1×18.9
0.44×0.090.46×0.980.69×2.66.5×94.5
890×0.095.4×7.80.6×0.660.26×51.4
9.1×0.058.2×0.780.25×0.93.96×2.6
一、口算。
0.8×9=7×0.8=0.9×1000=41.2÷100=
0.535×1000=0.1×0.3=0.005×0.6=0.8×0.2=
0.6×3=6×0.9=0.02×1000=39÷1000=
0.395×100=30×0.2=0.05×800=0.12×300=
二、列竖式计算。
6.8×0.050.5×0.650.21×0.40.5×89.1
0.49×0.50.84×0.90.97×9.40.56×61.8
44×0.090.71×0.777.2×3.70.39×91.6
6.6×0.040.63×0.560.53×0.289.81×0.65
一、口算。
0.7×4=3×0.9=0.006×1000=61.2÷10=
14.4×1000=0.07×0.3=0.6×80=1.7×700=
0.2×8=6×0.8=0.4×1000=7.53÷1000=
7.1×10=6×0.03=0.005×0.07=0.02×300=
二、列竖式计算。
0.78×0.050.79×0.770.94×0.970.17×1.76
0.34×0.34.8×9.40.27×5.90.8×43.7
660×0.87.6×6.94.1×61.7×46.9
0.86×0.081.6×0.280.11×0.564.77×0.23
一、口算。
0.1×8=9×0.9=0.01×10=3.91÷100=
78×100=80×0.3=0.5×0.4=0.1×80=
0.4×8=5×0.4=0.4×100=37.4÷10=
39.9×100=0.4×0.2=0.002×600=0.2×300=
二、列竖式计算。
0.84×0.047.1×68.3×0.740.76×91.6
1.5×0.90.29×1.30.55×6.89.2×9.63
58×0.49.3×0.498.7×50.6×4.92
4.7×0.58×0.230.32×0.1984.9×0.18
一、口算。
0.2×8=5×0.9=0.4×100=0.048÷10=
0.338×10=0.8×0.05=0.009×900=0.07×60=
0.2×5=9×0.8=0.09×1000=0.365÷100=
2.77×100=0.04×0.03=0.2×0.06=0.06×0.6=
二、列竖式计算。
0.77×0.80.3×0.527.8×7.53.6×54.2
3.4×0.30.37×3.40.15×85.7×3.56
620×0.081.2×4.76×0.85.4×9.22
0.81×0.084.9×0.230.76×0.466.36×6.9
一、口算。
0.6×8=8×0.2=0.008×10=7.79÷1000=
45.5×10=3×0.7=0.002×0.07=0.08×6=
0.3×9=6×0.7=0.5×1000=0.37÷100=
39.1×100=0.9×0.02=0.9×40=0.18×0.04=
二、列竖式计算。
0.95×0.48.3×0.640.25×0.218.5×45.4
0.66×0.061.7×4.40.15×0.15.3×4.74
5100×0.038.2×1.21.5×0.944.4×9.51
0.47×0.023.6×63.2×0.665.37×0.82
一、口算。
0.4×4=2×0.8=0.007×100=18.4÷10=
0.436×100=0.5×0.02=0.002×2=1.4×300=
0.4×3=9×0.4=0.1×100=0.707÷100=
0.677×10=0.01×0.4=0.006×0.2=0.02×0.07=
二、列竖式计算。
9.2×0.060.21×0.960.9×0.130.23×7
0.77×0.84.6×0.960.5×2.77.2×84.2
230×0.029.7×0.757.1×8.20.46×24.2
0.23×0.043.4×3.90.61×0.171.81×0.27
一、口算。
0.8×2=6×0.4=0.7×10=0.347÷10=
0.61×10=3×0.07=0.07×300=0.19×200=
0.5×5=9×0.8=0.4×100=6.05÷1000=
7.11×1000=8×0.05=0.007×0.7=0.6×0.04=
二、列竖式计算。
0.49×0.090.4×0.20.22×0.930.84×72.6
7.6×0.070.67×0.195.6×73.4×8.19
960×0.070.19×1.40.35×0.747.5×7.33
0.34×0.60.12×3.40.52×2.18.74×9.6
一、口算。
0.6×2=8×0.6=0.002×1000=59.9÷10=
30.6×10=80×0.6=0.3×50=0.15×0.07=
0.5×7=4×0.6=0.07×100=19.7÷100=
74.4×10=0.4×0.9=0.007×2=0.05×800=
二、列竖式计算。
9.3×0.20.23×0.962.6×0.10.5×48.9
0.86×0.90.18×1.17×0.848.6×45.5
9800×0.60.48×0.916.2×7.40.69×4.34
6.6×0.091.6×7.82.7×0.7550.3×0.75
一、口算。
0.5×8=7×0.6=0.03×10=77.9÷10=
0.9×10=0.5×0.9=0.4×8=0.01×0.07=
0.8×3=2×0.6=0.05×100=14.2÷1000=
90.3×1000=60×0.7=0.2×5=0.9×8=
二、列竖式计算。
0.88×0.40.46×2.25.8×0.360.64×82.7
2.2×0.070.95×4.70.46×6.18×69.3
0.92×0.49.4×6.40.87×3.80.69×32.4
0.77×0.69.5×9.56×0.558.11×0.33
一、口算。
0.2×7=7×0.5=0.03×10=0.88÷10=
78.9×10=3×0.3=0.04×0.08=0.01×0.5=
0.6×6=6×0.8=0.4×1000=67.8÷1000=
8.25×100=0.9×0.8=0.005×300=0.11×40=
二、列竖式计算。
0.77×0.037.1×0.935.9×6.71.6×5.54
0.47×0.90.95×0.230.91×0.350.75×6.16
3900×0.34.7×17.5×0.114.2×77.8
0.98×0.95×0.367×6.62.56×0.97
一、口算。
0.1×8=5×0.5=0.7×1000=5.67÷1000=
71.7×100=7×0.5=0.05×8=0.7×70=
0.8×5=9×0.2=0.4×100=1.37÷1000=
0.115×10=20×0.07=0.7×20=0.13×30=
二、列竖式计算。
0.75×0.080.42×9.90.94×0.46.3×1.78
3.1×0.027.9×1.10.62×0.440.17×1.26
3300×0.030.83×0.223.4×8.39.4×9.47
0.76×0.83.3×1.77.3×6.36.31×0.13
一、口算。
0.7×7=7×0.2=0.009×10=2.71÷100=
42.7×100=0.5×0.09=0.009×0.04=0.7×600=
0.5×5=6×0.8=0.002×100=3.9÷100=
0.897×1000=0.7×0.03=0.001×400=0.8×0.5=
二、列竖式计算。
0.69×0.045.3×2.72.7×9.20.79×70.7
0.41×0.051.6×0.24.3×0.474.9×41.2
0.86×0.30.29×4.60.54×0.620.56×4.1
0.73×0.78.7×4.70.28×4.673.9×0.54
一、口算。
0.9×4=8×0.3=0.006×1000=0.461÷1000=
33.7×1000=8×0.07=0.5×0.03=0.15×20=
0.8×5=3×0.9=0.09×100=0.959÷10=
15.3×100=0.1×0.02=0.7×900=1.3×0.4=
二、列竖式计算。
0.11×0.080.95×7.88.5×0.290.84×8.04
4.8×0.70.11×0.870.29×0.880.76×27.8
160×0.84.7×0.320.23×2.42.8×40
0.91×0.070.11×9.60.39×0.3314.7×0.25
一、口算。
0.2×2=3×0.5=0.7×10=0.472÷1000=
0.252×10=0.4×0.8=0.003×3=0.05×0.02=
0.4×7=6×0.5=0.007×10=2.01÷100=
19.7×10=2×0.4=0.9×40=0.1×0.2=
二、列竖式计算。
0.27×0.053×0.910.45×0.94.8×78.6
7.5×0.49.7×1.19.6×9.10.54×9.12
3200×0.040.75×58.8×70.63×98.8
2.4×0.021.4×0.810.18×0.274.04×0.32
一、口算。
0.1×2=5×0.3=0.01×10=0.417÷1000=
0.986×1000=0.01×0.3=0.005×0.6=0.4×8=
0.9×5=9×0.6=0.5×1000=0.612÷100=
2.93×100=0.02×0.3=0.2×70=0.9×700=
二、列竖式计算。
9.7×0.84×9.90.19×7.90.39×98
0.84×0.77×0.524.3×0.457.1×85.8
690×0.80.6×0.642.7×6.77.8×21.4
0.13×0.80.97×3.20.31×8.66.32×1.9
一、口算。
0.4×2=4×0.3=0.4×10=0.349÷100=
77.8×100=0.1×0.6=0.006×70=0.6×8=
0.7×5=9×0.3=0.8×10=9.91÷1000=
56×10=60×0.9=0.05×50=1.3×20=
二、列竖式计算。
3.5×0.60.71×7.73.3×0.736.7×35.9
6.1×0.20.44×8.74.9×0.440.9×33.8
0.38×0.30.63×6.60.79×0.453.7×7.6
7.2×0.83.5×7.21.2×0.547.55×9.8
一、口算。
0.7×3=8×0.2=0.2×1000=0.434÷100=
8.23×100=0.03×0.5=0.009×0.03=0.01×3=
0.9×5=8×0.9=0.9×1000=26.3÷1000=
6.85×100=0.03×0.6=0.003×400=0.5×300=
二、列竖式计算。
0.37×0.22.8×0.20.78×4.77.1×62.4
3.2×0.60.36×3.10.2×50.76×78.2
8200×0.26.1×0.515.5×3.27.3×8.08
9.2×0.053×1.78.5×6.57.04×0.1
一、口算。
0.4×5=7×0.2=0.09×100=0.087÷100=
87.6×100=6×0.05=0.003×6=0.5×0.9=
0.4×8=9×0.8=0.06×100=93.7÷10=
4.8×10=90×0.07=0.007×0.9=0.1×0.9=
二、列竖式计算。
0.18×0.076.1×7.17.3×4.91.5×6.47
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