北师大版四年级数学下册小数乘法综合练习题19.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19.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19
一、口算。
0.4×7=2×0.7=0.2×100=86.4÷1000=
0.116×10=70×0.02=0.006×200=0.2×2=
0.5×2=5×0.8=0.004×1000=0.08÷10=
5.86×100=90×0.03=0.6×0.8=0.2×40=
二、列竖式计算。
0.76×0.40.49×0.370.11×5.50.48×79.8
6.5×0.064.1×7.75.8×5.51.1×68.7
6.2×0.52×0.610.62×5.56×69.2
0.31×0.42.3×1.50.74×0.714.78×0.52
一、口算。
0.6×6=4×0.4=0.005×10=0.658÷1000=
56.8×100=1×0.04=0.1×0.04=1.5×2=
0.5×6=6×0.4=0.6×100=0.158÷100=
5.58×100=30×0.03=0.07×20=0.19×4=
二、列竖式计算。
6.9×0.022.2×0.685.1×9.51.5×5.16
8.1×0.34.9×7.70.17×9.42.8×39.7
780×0.080.85×0.960.25×0.690.72×90.6
4.1×0.60.24×0.780.79×0.6197×3.1
一、口算。
0.4×9=6×0.2=0.07×100=0.238÷1000=
0.58×1000=0.05×0.4=0.3×9=0.17×3=
0.7×2=2×0.3=0.06×10=9.33÷10=
17.5×1000=3×0.02=0.005×0.07=1.3×0.03=
二、列竖式计算。
0.18×0.30.43×0.560.43×5.70.29×9.54
0.24×0.073.2×0.630.72×0.520.67×5.68
2.9×0.80.85×6.65.5×0.360.82×4.63
2.4×0.045.6×0.670.14×0.432.39×3.2
一、口算。
0.7×2=5×0.3=0.008×100=9.58÷100=
21.1×100=1×0.09=0.006×0.3=0.06×0.6=
0.2×8=8×0.8=0.002×10=9.4÷1000=
3.66×10=7×0.4=0.2×0.02=0.1×0.8=
二、列竖式计算。
2.7×0.20.48×0.35.4×9.60.28×96.8
0.54×0.60.24×0.940.13×0.140.56×5.17
94×0.030.31×0.739.2×9.43.1×3.88
0.16×0.083.1×50.32×4.375.5×0.61
一、口算。
0.1×5=9×0.3=0.06×10=6.76÷100=
0.138×100=0.06×0.6=0.002×0.8=0.4×40=
0.8×5=2×0.5=0.003×100=0.874÷1000=
13.4×10=0.03×0.7=0.1×0.8=1.4×40=
二、列竖式计算。
7.7×0.93.9×2.76.8×3.89.4×25.2
0.75×0.050.92×0.363.9×0.390.1×58
6.2×0.034.9×8.35.5×0.220.19×6.3
0.32×0.82.8×1.97×0.669.19×6.7
一、口算。
0.5×8=6×0.3=0.6×1000=87.8÷10=
7.96×1000=5×0.04=0.04×0.5=0.4×0.5=
0.3×6=6×0.2=0.07×10=3.87÷1000=
0.501×10=0.5×0.9=0.009×30=0.2×0.3=
二、列竖式计算。
9.6×0.30.23×0.530.46×3.43.5×18.5
3.1×0.060.68×0.480.44×0.10.84×8.48
640×0.039.7×2.20.36×13.4×52.8
0.92×0.071.7×0.950.32×0.8840.4×3.8
一、口算。
0.3×8=9×0.2=0.9×10=8.11÷10=
41.4×100=3×0.3=0.1×600=0.03×90=
0.5×9=4×0.6=0.08×10=9.09÷1000=
7.1×10=0.5×0.6=0.7×6=1.1×0.04=
二、列竖式计算。
0.23×0.024.6×6.10.89×48.5×2.62
1.4×0.97.5×1.69.7×0.428.6×9.22
53×0.92.8×8.73.1×0.240.85×20
0.39×0.060.66×0.958.2×8.252.5×1.2
一、口算。
0.3×7=8×0.6=0.003×100=4.82÷1000=
0.77×10=0.01×0.8=0.6×800=0.08×6=
0.6×7=3×0.9=0.004×10=0.965÷10=
72.5×10=0.09×0.6=0.005×0.2=0.5×700=
二、列竖式计算。
0.79×0.044.9×0.451.6×0.250.84×3.28
0.83×0.040.31×8.46×5.80.27×9.43
67×0.72.3×0.674.4×0.80.24×98.1
0.18×0.028.1×2.90.14×8.87.58×0.94
一、口算。
0.5×6=5×0.6=0.001×1000=8.96÷100=
0.14×100=0.02×0.8=0.5×900=1×0.4=
0.9×5=6×0.2=0.9×1000=0.837÷10=
9.72×100=4×0.08=0.8×600=0.9×7=
二、列竖式计算。
0.89×0.089.6×1.10.28×9.88.5×3.77
7.5×0.30.49×0.710.96×32.4×6.05
6300×0.93.5×0.20.61×0.874.4×25.7
0.16×0.030.98×0.245.6×7.220.3×0.13
一、口算。
0.4×7=4×0.5=0.1×100=9.98÷10=
0.999×1000=0.1×0.07=0.6×40=0.2×30=
0.7×6=2×0.6=0.001×10=0.162÷10=
4.78×100=2×0.09=0.7×0.06=0.1×20=
二、列竖式计算。
7.9×0.029.4×23.5×0.98.3×23.8
0.62×0.24.4×0.274.5×1.99.8×8.16
0.62×0.070.92×0.60.93×0.460.59×47.1
0.45×0.055×7.10.66×4.115.8×0.73
一、口算。
0.3×7=4×0.8=0.07×10=0.428÷100=
63.3×100=3×0.04=0.04×30=0.8×0.04=
0.1×7=6×0.4=0.09×1000=9.41÷1000=
60.4×10=3×0.08=0.1×20=0.6×30=
二、列竖式计算。
7.4×0.98.9×0.390.66×8.50.68×5.72
6.2×0.020.15×0.279.3×4.30.35×4.41
61×0.98.1×0.612.3×0.520.34×9.07
0.73×0.056.9×0.980.98×0.1797.5×0.72
一、口算。
0.9×9=8×0.7=0.006×100=18.1÷10=
98.9×10=6×0.4=0.7×40=1.8×700=
0.2×7=5×0.2=0.4×100=0.615÷1000=
2.36×100=0.05×0.07=0.004×0.6=1.2×700=
二、列竖式计算。
0.91×0.67.7×6.54.2×0.670.21×34.4
0.52×0.44.4×0.328.3×0.747.7×77.2
7.4×0.070.21×0.687×0.24.7×64.6
2.7×0.40.58×9.90.39×0.781.71×0.38
一、口算。
0.2×7=7×0.7=0.7×10=0.831÷1000=
5.61×100=0.04×0.03=0.008×0.8=0.05×40=
0.9×7=7×0.7=0.005×100=32.8÷1000=
0.16×1000=9×0.7=0.5×30=0.14×30=
二、列竖式计算。
7.9×0.091.7×24.8×8.19.2×55.6
3.9×0.51×4.54.7×4.10.73×54.6
0.75×0.82×0.183.1×7.60.23×6.67
0.35×0.024.9×5.70.79×0.2864.2×0.25
一、口算。
0.5×6=9×0.2=0.06×100=97÷100=
2.63×10=20×0.02=0.5×0.4=0.03×900=
0.1×4=8×0.8=0.008×1000=92.9÷10=
58.8×1000=1×0.03=0.003×0.6=1.2×0.05=
二、列竖式计算。
0.57×0.090.97×7.86.9×0.953×8.05
8.6×0.090.93×7.67.5×5.80.8×48.6
34×0.60.34×5.28.9×3.60.83×11.7
0.29×0.026.1×7.62.8×0.8414.2×4
一、口算。
0.1×6=9×0.9=0.02×1000=0.2÷1000=
2.02×1000=5×0.09=0.6×0.4=0.5×20=
0.3×6=8×0.2=0.04×100=7.84÷10=
0.761×100=0.08×0.8=0.1×9=1.5×0.6=
二、列竖式计算。
0.81×0.96.8×7.11.4×1.25.1×7.84
2.1×0.087.5×9.31.7×0.192.1×9.53
85×0.085×3.46.3×0.328.7×28.6
0.21×0.080.75×0.73.7×0.6319×9.6
一、口算。
0.1×3=2×0.4=0.04×1000=2.1÷1000=
72.1×100=0.9×0.8=0.8×8=1.3×600=
0.3×9=4×0.2=0.05×1000=7.77÷1000=
3.17×100=5×0.03=0.009×5=0.01×6=
二、列竖式计算。
7.6×0.030.91×2.13×0.730.34×8.02
0.11×0.30.74×7.54×0.957.7×22.8
1.4×0.024.3×0.451.6×3.90.75×84.8
6.1×0.30.46×0.630.81×0.2138.3×7.3
一、口算。
0.6×8=7×0.9=0.001×100=0.044÷1000=
0.028×100=0.08×0.2=0.007×0.02=2×0.02=
0.1×8=3×0.9=0.8×1000=0.52÷100=
0.271×100=9×0.7=0.006×90=0.7×0.08=
二、列竖式计算。
2.6×0.64.3×1.40.28×0.440.94×15.5
3.6×0.40.35×0.172.4×0.810.62×17.7
96×0.050.52×0.697.9×2.69.9×6.51
1.5×0.50.48×5.70.14×967.5×0.46
一、口算。
0.8×3=2×0.8=0.002×100=0.055÷100=
6.08×1000=5×0.3=0.5×60=0.1×0.4=
0.8×7=7×0.6=0.3×10=27.3÷10=
0.786×10=0.05×0.7=0.1×90=0.1×0.9=
二、列竖式计算。
0.37×0.70.66×0.286.9×0.937.5×67.4
0.88×0.084.9×78.4×9.49.5×3.3
0.98×0.040.17×0.57.9×0.530.75×6.7
3.1×0.50.59×0.810.57×4.23.58×0.94
一、口算。
0.8×2=9×0.2=0.5×1000=0.238÷10=
0.387×10=0.06×0.5=0.005×600=0.04×700=
0.1×3=5×0.8=0.02×1000=0.351÷1000=
23.5×100=30×0.9=0.3×7=0.15×0.8=
二、列竖式计算。
4.6×0.057.9×6.97.2×0.650.75×1.79
6.2×0.70.85×0.810.5×0.293.7×65.9
1.6×0.82.4×2.40.85×0.690.57×4.48
1.3×0.83.2×2.39.1×9.894.9×0.97
一、口算。
0.4×3=9×0.6=0.07×1000=0.908÷100=
29.6×1000=0.02×0.08=0.005×0.04=0.4×0.03=
0.8×3=5×0.9=0.6×1000=6.58÷1000=
14.6×100=8×0.6=0.3×0.09=1.5×50=
二、列竖式计算。
0.79×0.087.3×9.90.89×11.5×77.1
4.7×0.046.9×0.230.71×0.853.7×31.6
910×0.20.75×0.940.49×20.35×6.61
6.5×0.092.9×0.740.98×4.634.9×6.3
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