北师大版四年级数学下册小数乘法专项练习题22.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22
5.8×0.5-2.7×0.2650-8.2-31.8
一、口算。
0.5×8=2×0.9=0.001×100=0.5÷10=
38.3×1000=60×0.02=0.04×30=0.17×2=
二、列竖式计算。
0.57×0.57.7×9.12.9×1.50.54×84.6
7.8×0.052.3×0.420.71×0.37×4.04
三、计算。
51×0.22+0.79.5+43×90.48+9.6+5.52
6.2×42+6.2×582.5×21×0.08
7.8×0.7+2.3×0.5840-0.42-7.58
一、口算。
0.7×5=8×0.3=0.04×1000=0.731÷100=
0.712×100=0.3×0.03=0.05×70=0.13×3=
二、列竖式计算。
0.32×0.090.13×6.22.8×8.48×72.6
0.41×0.40.85×0.184.2×6.85.9×43.5
三、计算。
93×75+1.25.4+97×50.7+0.57+7.3
0.42×2.3+0.42×7.70.05×6.4×0.8
0.59×0.08-0.46×0.056200-0.71-5.29
一、口算。
0.9×3=4×0.2=0.02×100=54.2÷1000=
44.9×1000=0.6×0.2=0.6×70=1.2×700=
二、列竖式计算。
7.6×0.70.62×0.85.1×2.67.3×42.5
0.54×0.079.4×1.10.31×0.240.8×26.3
三、计算。
0.89×6+0.072.6+4.1×64.2+0.36+55.8
0.56×2+0.56×85×24×2
7.9×0.8-3.4×0.2870-2.9-7.1
一、口算。
0.8×2=9×0.7=0.01×1000=0.162÷1000=
0.298×1000=0.8×0.03=0.3×0.08=0.18×5=
二、列竖式计算。
5.8×0.076.2×3.29.5×0.881.7×2.13
3.8×0.71.7×8.31.5×2.27.2×53.8
三、计算。
9.7×27+0.080.4+97×0.90.21+9.5+3.79
7.2×42+7.2×582.5×8.2×0.4
0.82×0.08-0.33×0.036200-5-85
一、口算。
0.4×9=7×0.9=0.7×1000=0.21÷10=
0.591×100=0.05×0.5=0.8×900=0.7×0.3=
二、列竖式计算。
7.2×0.030.3×0.260.89×0.410.93×8.12
8.6×0.38.5×3.89.8×0.672×4.79
三、计算。
7.5×28+0.093.8+52×63.6+2+6.4
4.4×80+4.4×2012.5×9×0.02
0.82×0.07+0.38×0.02980-6.5-3.5
一、口算。
0.7×3=5×0.7=0.006×100=0.016÷10=
0.682×100=5×0.02=0.01×700=0.12×50=
二、列竖式计算。
3.8×0.050.11×2.10.87×9.90.15×5.61
7.4×0.61.4×7.90.68×0.820.43×4.65
三、计算。
0.86×0.51+0.13+48×0.40.2+3.3+0.8
8.8×18+8.8×82125×1.3×2
7.2×0.6-2×0.4970-1.9-78.1
一、口算。
0.2×8=8×0.3=0.06×1000=0.11÷100=
0.93×100=0.1×0.06=0.007×400=0.8×4=
二、列竖式计算。
8.3×0.049.9×0.675.3×0.322.5×81
0.61×0.96.5×0.421.9×0.190.81×2.6
三、计算。
1.6×58+0.096.8+61×34.8+0.5+5.2
1.4×76+1.4×24125×4.6×0.4
0.69×0.08-0.23×0.058100-0.41-0.59
一、口算。
0.4×7=8×0.6=0.08×100=88.4÷10=
0.86×100=40×0.5=0.07×0.9=0.17×5=
二、列竖式计算。
9.2×0.066.7×9.22.9×0.380.41×20.9
9.7×0.54.3×0.426×0.334.4×51.4
三、计算。
31×75+0.061.1+1.6×0.50.47+9.5+3.53
0.13×9+0.13×125×64×0.08
0.74×0.07-0.16×0.026800-5.1-14.9
一、口算。
0.3×5=8×0.4=0.006×1000=60÷100=
0.47×1000=0.04×0.9=0.003×7=0.3×700=
二、列竖式计算。
5.6×0.039.4×8.20.45×1.20.88×7.5
0.48×0.060.28×1.70.34×0.40.78×58.9
三、计算。
18×7+10.22+4.6×0.34.2+0.42+35.8
9.6×77+9.6×231.25×2.5×0.4
0.62×0.09-0.26×0.032300-5.4-94.6
一、口算。
0.7×8=7×0.7=0.007×10=0.614÷10=
0.64×100=3×0.05=0.3×0.08=0.11×0.02=
二、列竖式计算。
0.23×0.78.3×5.47.4×3.91.1×8.61
2.2×0.097×1.10.86×9.40.52×8.07
三、计算。
2.6×0.6+0.10.48+1.5×0.50.45+0.42+1.55
0.89×0.11+0.89×0.891.25×13×0.04
0.59×0.05-0.14×0.05960-3.7-96.3
一、口算。
0.8×7=4×0.3=0.009×1000=4.41÷1000=
0.052×100=8×0.04=0.009×4=1.7×400=
二、列竖式计算。
4.5×0.070.22×0.370.87×0.718.3×8
0.12×0.097.2×0.761.8×8.40.84×86.2
三、计算。
0.28×0.8+13.3+6×50.65+8.8+7.35
0.22×0.32+0.22×0.6812.5×0.11×8
0.65×0.07+0.46×0.03700-0.32-8.68
一、口算。
0.8×2=2×0.5=0.005×1000=5.26÷10=
1.5×1000=0.4×0.06=0.009×200=0.4×90=
二、列竖式计算。
9.2×0.030.71×0.420.57×3.48.8×15
0.57×0.82.2×4.85.9×7.29.7×84.5
三、计算。
8.6×23+1.20.14+44×0.80.42+0.34+1.58
9.5×3.2+9.5×6.80.05×0.22×8
0.64×0.07-0.13×0.042400-0.47-3.53
一、口算。
0.7×4=6×0.4=0.04×10=5.4÷1000=
0.603×1000=7×0.9=0.07×2=0.19×700=
二、列竖式计算。
0.83×0.033×0.270.25×3.70.68×1.95
7.4×0.77.6×0.410.51×3.20.68×2.05
三、计算。
0.24×2.3+0.060.34+7.7×43+0.92+57
0.82×1.3+0.82×8.75×0.89×0.04
7.2×0.8+2×0.5680-1.2-48.8
一、口算。
0.9×8=9×0.4=0.009×100=8.4÷100=
83.2×1000=0.02×0.09=0.008×0.9=1.9×0.03=
二、列竖式计算。
3.8×0.072.8×5.40.35×4.46.5×84.5
0.75×0.90.22×0.935.8×0.943.2×29.7
三、计算。
14×0.83+0.097.7+58×26.2+2.7+63.8
5.1×83+5.1×17125×2.5×0.4
0.82×0.08-0.17×0.053500-8.6-81.4
一、口算。
0.1×7=7×0.9=0.6×1000=0.977÷10=
59.1×1000=40×0.8=0.04×7=0.17×0.08=
二、列竖式计算。
9.2×0.080.21×2.88.3×8.55.8×9.79
2.7×0.095.8×2.79.4×0.660.48×32.3
三、计算。
34×14+0.099.1+0.24×0.80.93+8.7+5.07
0.65×88+0.65×1212.5×3×0.4
0.74×0.07+0.39×0.04180-4.4-45.6
一、口算。
0.3×5=8×0.2=0.06×100=1.91÷10=
0.151×100=0.08×0.09=0.5×8=2×2=
二、列竖式计算。
0.13×0.37.2×0.710.26×0.692.9×14.4
0.26×0.85.1×0.550.31×0.656×45.4
三、计算。
0.23×0.78+0.080.9+0.74×0.84.7+0.69+85.3
8.7×54+8.7×460.05×10×0.08
9.5×0.6-3.4×0.44000-4.1-5.9
一、口算。
0.6×5=9×0.4=0.009×100=0.61÷100=
0.558×1000=0.7×0.8=0.007×50=0.05×0.6=
二、列竖式计算。
4.8×0.071×0.590.5×6.50.42×35.8
0.67×0.045.2×7.60.15×6.60.16×54.6
三、计算。
11×71+0.84.7+8.7×31.6+4+78.4
0.73×0.51+0.73×0.49125×70×0.02
0.64×0.09+0.49×0.05870-4.6-55.4
一、口算。
0.3×7=5×0.6=0.006×10=0.514÷1000=
0.083×10=0.9×0.5=0.04×0.02=0.16×60=
二、列竖式计算。
0.21×0.020.96×0.549.8×0.539.8×6.42
4.3×0.90.62×5.80.31×5.33×8.68
三、计算。
0.08×0.83+0.062.7+0.68×60.19+0.81+4.81
0.79×17+0.79×830.25×2.6×8
0.92×0.05-0.13×0.022400-0.34-1.66
一、口算。
0.4×8=6×0.6=0.01×100=96.3÷100=
0.932×1000=0.5×0.4=0.005×40=1.5×0.3=
二、列竖式计算。
0.69×0.50.98×0.247.4×0.13.7×4.35
0.89×0.48.5×9.45.1×3.80.26×8.98
三、计算。
0.04×9.1+0.110.81+0.43×52.5+9.8+47.5
1.4×6.4+1.4×3.625×0.32×0.2
0.84×0.08+0.24×0.02530-2.8-47.2
一、口算。
0.7×3=2×0.7=0.06×1000=2.37÷1000=
1.46×100=90×0.8=0.3×6=1.9×0.4=
二、列竖式计算。
0.96×0.90.16×0.260.19×0.42.5×9.67
0.36×0.82.1×8.87.9×0.885.9×3.82
三、计算。
0.63×27+1.19.7+8.1×0.50.49+2.3+4.51