北师大版四年级数学下册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小数乘法专项练习题115
7×0.8-2.9×0.37600-0.89-8.11
一、口算。
0.6×8=4×0.3=0.005×100=0.29÷1000=
0.31×100=0.4×0.8=0.4×0.07=0.3×0.8=
二、列竖式计算。
0.68×0.070.87×0.430.45×1.17.6×9.23
4.1×0.70.96×0.20.87×6.77.1×3.9
三、计算。
1.1×0.63+0.111.7+0.43×0.80.5+0.44+9.5
0.94×0.88+0.94×0.120.5×12×0.2
0.56×0.06-0.45×0.046000-0.25-0.75
一、口算。
0.8×9=9×0.9=0.005×10=34.7÷10=
25×100=0.02×0.5=0.03×5=0.11×0.09=
二、列竖式计算。
0.45×0.025×0.190.59×3.47.7×4.58
0.24×0.30.79×0.990.38×0.425.7×3.94
三、计算。
83×44+0.50.56+0.77×0.54.7+0.6+5.3
0.91×0.7+0.91×0.31.25×29×0.2
0.55×0.05+0.1×0.05160-2.6-77.4
一、口算。
0.6×2=6×0.6=0.03×1000=3.97÷100=
52.8×1000=4×0.09=0.07×900=1.9×300=
二、列竖式计算。
0.83×0.48.6×0.510.97×9.40.95×8.31
0.69×0.55.3×0.434×31.6×5.33
三、计算。
0.31×2.5+0.050.98+1×0.26+9.7+94
0.76×35+0.76×650.05×0.18×0.2
0.74×0.05-0.45×0.03450-0.94-9.06
一、口算。
0.1×5=7×0.5=0.006×10=4.63÷100=
0.98×100=50×0.9=0.01×0.2=0.18×0.5=
二、列竖式计算。
0.32×0.60.57×17.1×0.810.93×9.76
0.23×0.051.1×6.60.25×8.90.23×38.3
三、计算。
3.3×0.66+14.2+53×0.61.8+5.3+88.2
0.64×1.5+0.64×8.50.25×88×2
0.64×0.06+0.1×0.036600-0.8-8.2
一、口算。
0.4×9=3×0.6=0.6×10=0.412÷100=
1.06×100=0.5×0.09=0.4×0.09=2×600=
二、列竖式计算。
0.66×0.030.67×4.60.84×7.80.81×6.94
7.7×0.30.53×53.8×0.810.19×8.19
三、计算。
0.1×8.3+0.051.3+0.98×80.5+3.6+4.5
9×0.29+9×0.710.05×8.5×0.2
0.86×0.09+0.32×0.04400-3.6-16.4
一、口算。
0.4×3=7×0.6=0.005×100=15.7÷10=
62.5×1000=0.1×0.5=0.003×30=1.1×7=
二、列竖式计算。
9.2×0.90.49×0.797.8×0.953.2×78.9
3.4×0.50.26×0.640.79×8.30.12×18.5
三、计算。
15×0.99+0.089.7+4.3×0.50.15+0.69+5.85
0.19×0.48+0.19×0.525×9.5×0.8
0.94×0.07+0.46×0.02600-0.35-4.65
一、口算。
0.4×4=5×0.9=0.007×10=3.8÷1000=
9.6×1000=20×0.5=0.04×400=0.05×0.8=
二、列竖式计算。
1.6×0.70.75×9.55.4×0.190.74×89.6
0.76×0.64.3×0.132.1×1.19.9×5.01
三、计算。
0.5×1+10.74+0.13×0.20.97+7.2+3.03
0.47×0.28+0.47×0.721.25×6.5×0.8
6×0.9+3.5×0.4450-1.4-58.6
一、口算。
0.5×6=6×0.3=0.9×10=4.59÷100=
1.24×100=4×0.07=0.006×200=0.17×800=
二、列竖式计算。
0.92×0.70.61×0.756.3×0.740.14×9.49
0.15×0.034.5×0.291.3×3.90.74×3.33
三、计算。
71×0.91+0.88.6+0.8×50.96+1.3+4.04
0.15×0.46+0.15×0.540.05×1.2×0.02
5.7×0.5-3.3×0.2540-7.5-2.5
一、口算。
0.3×2=7×0.6=0.2×1000=2.19÷100=
20.8×1000=10×0.7=0.6×0.4=0.04×300=
二、列竖式计算。
6.9×0.023.8×0.197×8.91.6×8.27
2.3×0.054.8×3.50.35×6.16.4×56.7
三、计算。
2.7×88+0.80.16+4.4×0.50.4+9.1+3.6
8.2×1.9+8.2×8.10.5×1.1×0.2
0.68×0.06-0.43×0.059200-0.9-7.1
一、口算。
0.1×7=4×0.3=0.04×10=0.955÷100=
0.111×1000=60×0.03=0.8×0.2=1.7×500=
二、列竖式计算。
1.5×0.40.53×0.210.88×0.90.1×6.74
1.3×0.60.97×0.440.48×0.680.6×2.71
三、计算。
55×0.23+0.123+88×0.39.2+7.4+10.8
6.9×7.4+6.9×2.65×84×0.4
0.93×0.07+0.31×0.05140-1.8-78.2
一、口算。
0.4×6=7×0.9=0.1×1000=4.6÷10=
31×10=0.3×0.4=0.09×500=0.08×0.03=
二、列竖式计算。
0.24×0.60.83×7.17.5×60.96×23.1
6.9×0.071.4×31.1×7.20.8×6.91
三、计算。
6.4×0.94+0.10.13+59×0.80.88+0.77+8.12
7.8×3.9+7.8×6.11.25×97×0.02
6.6×0.7-1.3×0.4450-9.2-10.8
一、口算。
0.2×4=8×0.3=0.003×1000=0.586÷10=
1.3×100=0.6×0.07=0.2×9=0.8×60=
二、列竖式计算。
0.72×0.070.56×0.680.87×2.83.5×4.49
8.1×0.037.3×6.50.8×0.770.76×66
三、计算。
43×3.2+0.114.4+7.7×90.37+0.32+0.63
0.19×7.7+0.19×2.30.5×5.7×0.8
0.52×0.08+0.13×0.05370-4.3-95.7
一、口算。
0.7×9=6×0.5=0.8×1000=86.2÷10=
41.1×1000=0.4×0.3=0.5×0.3=1.9×4=
二、列竖式计算。