北师大版四年级数学下册小数乘法专项练习题120.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120
0.79×0.09-0.2×0.02130-0.36-9.64
一、口算。
0.8×4=4×0.7=0.01×10=25.7÷1000=
4.34×1000=9×0.7=0.003×0.06=0.06×0.08=
二、列竖式计算。
7.4×0.40.5×9.24.7×0.450.7×3.16
0.82×0.77.3×0.688.1×60.1×59.5
三、计算。
91×6.4+0.096.5+6.4×60.19+1.9+7.81
9.1×61+9.1×39125×42×4
7.2×0.8-1.7×0.3780-0.99-9.01
一、口算。
0.3×3=9×0.3=0.009×100=71.9÷1000=
0.527×100=0.03×0.05=0.03×0.04=0.4×0.06=
二、列竖式计算。
6.4×0.053.7×8.50.76×2.14.1×24.4
0.64×0.096.2×27.7×0.795.1×5.64
三、计算。
0.66×27+0.90.19+9.1×0.25+9.9+65
1.2×59+1.2×410.05×0.69×0.04
5.8×0.5-3.8×0.2300-2-28
一、口算。
0.6×5=4×0.8=0.5×100=2.67÷10=
4.1×1000=0.1×0.05=0.09×600=0.16×0.04=
二、列竖式计算。
0.81×0.080.55×0.656.5×5.20.62×7.57
0.16×0.031.5×7.20.68×8.43.6×33.4
三、计算。
28×0.34+1.10.56+9.3×80.97+0.97+4.03
0.66×30+0.66×702.5×0.48×0.08
0.58×0.06-0.25×0.05780-9.1-20.9
一、口算。
0.1×2=6×0.3=0.03×10=0.69÷1000=
0.174×100=30×0.3=0.07×70=0.08×0.07=
二、列竖式计算。
1.5×0.39.9×0.310.36×0.878.3×18.4
4.7×0.057.5×0.770.76×4.76×61.1
三、计算。
45×5.3+0.050.41+6.4×80.94+5.8+1.06
0.9×9.8+0.9×0.212.5×3.3×4
5×0.5-3×0.5950-0.39-0.61
一、口算。
0.2×3=5×0.2=0.004×100=0.32÷10=
0.67×100=0.03×0.08=0.3×500=0.2×800=
二、列竖式计算。
0.67×0.70.83×5.90.92×4.80.19×72.6
8.5×0.84.7×8.54.2×4.84.1×6.8
三、计算。
0.9×27+0.050.81+8.9×0.83.6+0.91+6.4
6.5×2.8+6.5×7.212.5×5.6×0.02
9.7×0.6-4.2×0.34500-0.83-7.17
一、口算。
0.3×4=2×0.2=0.004×10=0.356÷100=
2.2×1000=1×0.7=0.007×8=0.4×7=
二、列竖式计算。
0.19×0.80.72×8.51×0.810.62×96.6
0.28×0.098.8×0.44.1×3.27.1×5.64
三、计算。
0.5×3.6+0.090.71+56×0.50.37+6.3+4.63
0.79×8.2+0.79×1.825×98×0.8
0.68×0.08+0.43×0.04230-7.3-22.7
一、口算。
0.2×7=7×0.8=0.2×10=7.32÷10=
0.309×1000=80×0.06=0.01×0.03=0.18×0.08=
二、列竖式计算。
0.36×0.51.2×0.936.7×0.328.4×3.3
4.6×0.90.56×0.428.7×6.31.9×89.4
三、计算。
65×48+13.5+0.58×0.40.55+6+6.45
8.9×8.7+8.9×1.31.25×0.21×0.08
6.3×0.9+1.5×0.53700-8-92
一、口算。
0.4×4=3×0.8=0.03×1000=0.42÷1000=
0.058×10=0.4×0.6=0.007×50=0.1×70=
二、列竖式计算。
0.13×0.80.97×1.20.13×4.25×3.97
2.7×0.060.58×0.740.61×3.60.91×3.49
三、计算。
0.32×3.1+1.13.8+0.51×0.20.47+7.8+7.53
8.8×9.3+8.8×0.75×42×0.08
0.93×0.07-0.23×0.02210-1.7-98.3
一、口算。
0.4×7=7×0.2=0.1×10=6.58÷10=
0.302×100=0.2×0.7=0.001×800=0.18×500=
二、列竖式计算。
0.17×0.095.3×0.269.3×7.84.5×23.7
1.7×0.99.1×0.220.74×0.911.2×88.8
三、计算。
8.2×18+0.10.6+6.1×30.95+0.84+3.05
0.9×0.31+0.9×0.690.25×0.58×0.02
0.67×0.09+0.2×0.02190-3-17
一、口算。
0.9×6=9×0.6=0.001×1000=0.509÷10=
17.9×1000=30×0.09=0.4×600=1.7×0.6=
二、列竖式计算。
0.35×0.080.45×0.110.94×8.43.9×4.95
0.84×0.50.29×0.890.66×0.655.2×82.7
三、计算。
9.9×6+0.051.4+7.4×75.1+6.1+54.9
9.5×73+9.5×270.5×6.2×0.08
9.2×0.7-2.7×0.53300-1.8-98.2
一、口算。
0.6×3=8×0.9=0.007×100=0.546÷10=
0.992×100=3×0.05=0.09×0.02=0.2×200=
二、列竖式计算。
0.11×0.044.7×4.50.14×0.711.1×9.66
3.8×0.43.3×0.755.2×2.92.3×42.3
三、计算。
0.52×0.74+0.070.92+0.17×41.3+2.1+68.7
0.35×55+0.35×455×27×0.08
9.6×0.7+4.5×0.4150-5.5-14.5
一、口算。
0.4×8=5×0.5=0.3×10=0.526÷100=
48.7×10=8×0.2=0.002×800=0.08×900=
二、列竖式计算。
3.7×0.090.49×0.179.3×0.680.99×4.82
1.6×0.067.8×0.148.4×0.535.4×7.15
三、计算。
0.63×8.4+0.059.6+9.7×70.18+1.8+5.82
0.67×9.4+0.67×0.625×7.5×0.04
8.1×0.9-2.5×0.37200-0.45-5.55
一、口算。
0.7×2=4×0.4=0.008×10=6.39÷1000=
0.73×1000=0.04×0.07=0.09×600=0.13×30=
二、列竖式计算。
0.32×0.030.58×0.460.66×30.57×6.74
0.31×0.074.9×7.60.17×7.90.68×19.4
三、计算。
82×31+0.070.99+17×0.70.77+0.76+6.23
2.3×2.3+2.3×7.70.5×59×8
0.61×0.08-0.14×0.038600-0.32-4.68
一、口算。
0.8×6=8×0.9=0.7×100=0.454÷100=
0.97×100=0.3×0.5=0.4×0.02=0.16×0.04=
二、列竖式计算。
0.31×0.020.47×9.51×3.93.6×23.7
0.23×0.60.63×0.790.71×0.180.34×51
三、计算。
44×15+0.090.25+0.68×54.2+0.72+35.8
3.6×0.25+3.6×0.75125×0.35×2
0.96×0.08-0.38×0.03260-2.6-47.4
一、口算。
0.3×9=8×0.3=0.5×100=0.211÷1000=
0.762×10=3×0.04=0.2×600=1.2×700=
二、列竖式计算。
0.16×0.50.57×0.81.9×6.59.3×7.76
8.4×0.030.79×9.95.4×0.184×2.42
三、计算。
76×2.1+0.121.1+0.58×50.87+6.6+3.13
3.9×0.36+3.9×0.645×45×0.04
0.54×0.05-0.22×0.038200-9.5-50.5
一、口算。
0.3×6=8×0.4=0.007×10=2.23÷1000=
0.632×1000=0.01×0.07=0.6×0.04=0.09×3=
二、列竖式计算。
0.85×0.020.25×30.56×0.260.47×8.46
1.4×0.099.4×0.680.99×0.140.2×1.76
三、计算。
8.2×32+0.127.5+83×0.22.9+0.54+17.1
3×7.1+3×2.912.5×42×2
0.54×0.07+0.13×0.05720-0.52-9.48
一、口算。
0.7×9=5×0.2=0.08×1000=18.8÷10=
7.46×10=40×0.6=0.05×0.5=2×0.9=
二、列竖式计算。
0.11×0.20.92×9.60.69×2.25.1×4.17
0.65×0.20.97×0.370.73×0.279.8×4.17
三、计算。
0.62×44+1.20.36+0.51×80.88+0.9+8.12
5.8×0.43+5.8×0.570.05×9×0.4
9.7×0.5-2.3×0.3340-6.8-63.2
一、口算。
0.5×6=9×0.4=0.5×10=0.408÷1000=
1.31×1000=40×0.4=0.7×5=1.6×0.04=
二、列竖式计算。
8.9×0.53.3×0.410.1×7.10.49×74.9
0.26×0.020.1×6.59.8×6.20.65×61.5
三、计算。
60×5.2+0.70.99+5.3×70.29+0.19+7.71
0.56×3.5+0.56×6.50.25×0.82×8
0.8×0.05+0.16×0.058700-6.2-3.8
一、口算。
0.3×4=9×0.7=0.004×10=47÷10=
40.4×1000=0.05×0.5=0.04×0.08=2×0.03=
二、列竖式计算。
0.38×0.97×2.52.7×0.632.1×83.2
7.9×0.60.22×5.41.7×2.10.27×50.3
三、计算。
70×0.16+0.060.9+80×80.75+0.66+5.25
6.9×44+6.9×565×0.43×0.4
6.1×0.9-2.2×0.4850-1.7-8.3
一、口算。
0.5×9=6×0.5=0.8×100=62.9÷100=
2.35×1000=0.09×0.5=0.006×3=0.9×600=
二、列竖式计算。
8.3×0.63.4×3.15.5×65.9×6.17
0.34×0.30.66×9.80.38×0.640.97×6.02