北师大版四年级数学下册小数乘法综合练习题49.docx
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北师大版四年级数学下册小数乘法综合练习题49.docx
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北师大版四年级数学下册小数乘法综合练习题49
一、口算。
0.5×5=3×0.3=0.005×1000=0.895÷100=
95.7×10=10×0.5=0.009×0.04=0.18×200=
0.1×2=2×0.3=0.3×100=70.4÷10=
30.4×10=0.2×0.5=0.5×90=1.4×800=
二、列竖式计算。
5.9×0.24.5×6.20.15×5.77.7×79.4
0.84×0.74.5×0.151.1×0.350.56×18.4
78×0.28.2×6.22.7×0.354.9×4.61
7.6×0.090.29×0.480.45×3.441.6×0.75
一、口算。
0.2×6=5×0.7=0.3×100=3.53÷1000=
4.33×10=0.01×0.06=0.08×50=1.3×0.6=
0.2×4=8×0.6=0.001×10=47.8÷100=
8.79×1000=0.1×0.06=0.008×4=1×0.2=
二、列竖式计算。
0.16×0.21×9.14.5×0.828.2×65.2
0.73×0.060.79×0.970.71×0.99.7×37.5
9.7×0.090.64×0.859.2×6.30.85×73.3
0.66×0.049.5×0.265.1×1.551.1×0.81
一、口算。
0.7×4=3×0.7=0.02×100=42.5÷100=
7.95×10=0.08×0.8=0.3×0.06=1.5×800=
0.1×8=3×0.4=0.07×1000=36.5÷100=
6.8×10=0.03×0.04=0.5×0.07=0.8×40=
二、列竖式计算。
0.24×0.20.9×1.16.8×7.20.21×64.5
0.11×0.070.86×4.80.99×0.846.1×5.13
21×0.055.1×8.10.5×9.90.76×93.2
7.6×0.084.8×0.360.38×0.242.16×4.5
一、口算。
0.1×7=4×0.3=0.008×10=1.48÷100=
8.82×1000=0.06×0.7=0.002×2=1.6×0.9=
0.5×2=7×0.3=0.006×1000=0.63÷100=
79.2×10=90×0.3=0.5×7=1.3×9=
二、列竖式计算。
0.79×0.039.8×8.60.5×7.37.3×2.67
6.3×0.33.4×0.470.38×8.95.3×23.8
0.84×0.080.48×0.866.8×8.90.6×4.18
0.54×0.20.96×0.350.86×0.8645.9×8.8
一、口算。
0.7×7=8×0.3=0.2×10=0.649÷1000=
0.613×10=0.5×0.05=0.04×0.09=0.05×0.04=
0.9×9=2×0.5=0.07×10=0.63÷100=
0.528×100=60×0.5=0.02×6=1.5×50=
二、列竖式计算。
6.6×0.090.74×3.80.54×0.137.8×3.7
6.7×0.50.47×2.22.5×2.62.6×6.35
53×0.32.3×0.20.57×1.73.5×72.6
7.4×0.048.3×0.621.8×7.142.8×8
一、口算。
0.8×6=4×0.3=0.7×1000=7.09÷1000=
97.5×100=0.02×0.4=0.03×60=1.2×20=
0.4×2=9×0.2=0.009×1000=0.523÷10=
4.6×10=0.5×0.9=0.008×9=0.16×0.7=
二、列竖式计算。
2.4×0.79.5×3.62.4×9.40.96×14.5
0.56×0.083.7×7.56.9×0.542×43.6
9.3×0.055.9×0.810.61×0.248.1×22.4
4.4×0.20.62×0.379.6×4.72.74×2.6
一、口算。
0.2×9=2×0.3=0.1×1000=0.058÷10=
8.38×100=70×0.02=0.07×90=0.14×3=
0.1×2=8×0.4=0.2×1000=70.5÷100=
0.992×100=6×0.3=0.6×70=1.6×0.6=
二、列竖式计算。
0.44×0.20.59×4.60.94×0.739.6×7.09
7.5×0.080.63×1.64.9×1.91×26.4
440×0.47.1×0.610.41×5.30.18×8.27
0.71×0.60.81×0.383.7×0.9675.5×1.9
一、口算。
0.7×6=3×0.8=0.7×100=1.13÷100=
0.188×1000=7×0.8=0.4×90=1.1×0.9=
0.2×5=4×0.6=0.004×1000=0.762÷10=
19.1×1000=10×0.5=0.05×6=1.2×0.06=
二、列竖式计算。
0.47×0.20.31×0.170.61×0.932.8×7.01
0.62×0.030.51×0.460.92×0.950.51×7.42
67×0.60.37×7.39.4×50.74×8.51
4.5×0.31.6×5.80.43×0.564.81×0.6
一、口算。
0.4×8=4×0.7=0.006×10=0.763÷100=
0.338×10=0.07×0.2=0.08×0.09=0.12×600=
0.6×8=2×0.8=0.7×1000=5.95÷100=
0.648×1000=10×0.03=0.001×700=1.5×0.03=
二、列竖式计算。
8.2×0.090.8×0.872.2×2.77.5×46.3
0.74×0.67.4×0.850.74×4.99.7×35.4
12×0.20.45×0.290.21×2.28.9×2.43
9.9×0.90.41×0.888.8×0.5670.7×6.5
一、口算。
0.9×6=2×0.3=0.009×100=4.79÷10=
26.6×1000=60×0.03=0.4×20=1.7×0.8=
0.5×7=6×0.7=0.2×10=3.84÷1000=
6.88×100=0.1×0.08=0.008×30=0.8×0.03=
二、列竖式计算。
0.37×0.056.5×3.15.8×5.58.2×2.64
0.46×0.80.94×1.60.38×0.238.3×37.5
0.75×0.090.17×6.80.55×1.87.5×7.45
0.41×0.088.8×30.12×9.823.8×5.6
一、口算。
0.3×5=6×0.9=0.01×1000=79.8÷100=
3.19×10=7×0.7=0.01×0.6=0.3×9=
0.5×8=7×0.2=0.001×100=3.67÷10=
70.9×1000=9×0.6=0.009×20=1.2×8=
二、列竖式计算。
0.64×0.090.16×4.90.92×0.470.79×70.9
4.1×0.60.13×4.90.25×8.50.26×94.3
0.34×0.030.18×0.61.8×3.21×5.48
7.9×0.21.4×0.950.95×3.497.1×6.3
一、口算。
0.1×2=6×0.7=0.03×10=0.019÷10=
0.085×100=1×0.04=0.7×4=0.1×20=
0.7×3=6×0.7=0.2×100=0.89÷100=
41.6×1000=0.06×0.4=0.006×6=0.14×0.09=
二、列竖式计算。
4.3×0.40.25×8.60.4×0.330.85×1.78
0.19×0.070.63×9.30.84×8.73.8×7.57
8800×0.060.34×9.41.4×0.783.9
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