北师大版四年级数学下册小数乘法专项练习题31.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31.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31
一、口算。
0.2×9=6×0.3=0.8×1000=7.94÷100=
4.31×10=4×0.08=0.09×90=1×0.4=
二、列竖式计算。
0.87×0.81.1×9.70.57×3.90.12×86.6
0.83×0.34.4×0.352.5×0.280.31×17
三、计算。
0.38×9.5+10.25+0.59×20.97+4.3+8.03
2.4×5.7+2.4×4.3125×55×0.02
8.6×0.6+4.6×0.49300-0.38-2.62
一、口算。
0.4×4=9×0.8=0.1×10=3.7÷1000=
0.643×100=0.04×0.05=0.002×0.3=1.1×2=
二、列竖式计算。
0.64×0.067.5×0.825.5×3.39.2×28.8
6.7×0.50.86×0.268.9×0.770.32×1.36
三、计算。
0.09×99+0.84.6+6.9×62.6+0.27+57.4
7.9×50+7.9×50125×1.8×0.08
7.4×0.6-3.3×0.51200-4.8-65.2
一、口算。
0.6×2=9×0.5=0.009×1000=2.9÷100=
0.915×100=6×0.02=0.03×0.9=1.7×0.06=
二、列竖式计算。
0.61×0.080.11×7.95.1×0.270.65×2.41
3.6×0.70.88×0.390.29×0.83.4×23.2
三、计算。
0.5×0.2+0.19.6+8.6×0.30.96+0.93+5.04
0.22×3.3+0.22×6.70.25×0.78×0.08
0.63×0.06-0.18×0.028600-0.76-8.24
一、口算。
0.6×3=7×0.4=0.009×10=9.44÷1000=
0.974×100=7×0.2=0.008×0.4=0.06×0.9=
二、列竖式计算。
0.96×0.96.4×0.273.5×0.55×1.58
1.1×0.60.69×8.37.7×4.32.8×59.8
三、计算。
0.29×0.04+0.114.4+0.93×32.7+0.86+57.3
7.9×0.63+7.9×0.370.05×5.6×0.2
9.7×0.7-3.2×0.34800-1.2-48.8
一、口算。
0.9×4=5×0.8=0.08×10=42.1÷1000=
0.646×1000=4×0.5=0.4×0.4=1.3×0.02=
二、列竖式计算。
3.1×0.26.5×9.93.7×1.63.7×1.3
6.2×0.040.76×3.82.4×0.50.33×76.2
三、计算。
5.7×4.9+1.10.97+2.9×41.1+9.7+38.9
9.4×99+9.4×10.5×2.6×0.02
0.65×0.09-0.43×0.027900-5.9-34.1
一、口算。
0.1×3=5×0.9=0.1×100=0.146÷1000=
24.6×100=0.1×0.03=0.02×80=0.16×90=
二、列竖式计算。
5.2×0.099.3×0.890.26×9.70.15×71.9
6.8×0.45.3×8.40.93×5.41×79.3
三、计算。
0.6×0.63+0.61.3+0.82×44.2+6.9+5.8
1.8×0.21+1.8×0.79125×64×0.02
8.7×0.7+4.3×0.43200-0.82-1.18
一、口算。
0.7×2=2×0.9=0.006×100=7.75÷1000=
96.4×1000=9×0.9=0.003×0.6=0.19×0.02=
二、列竖式计算。
4.8×0.061.2×3.38.9×0.135×22.1
8.6×0.050.34×0.810.1×0.910.18×72
三、计算。
0.14×8.3+0.060.54+0.75×0.37.2+0.26+2.8
8.7×4.5+8.7×5.51.25×0.46×0.2
0.97×0.06+0.13×0.03310-7.5-62.5
一、口算。
0.5×2=8×0.8=0.7×10=5.58÷1000=
1.45×1000=40×0.02=0.02×30=0.5×400=
二、列竖式计算。
0.47×0.070.13×0.570.67×7.60.23×5.61
4.5×0.41.6×8.24.3×7.43.4×62.7
三、计算。
0.02×49+0.123.9+0.85×0.43.4+0.9+56.6
4.9×1.2+4.9×8.8125×15×4
6.9×0.9+2.2×0.2650-0.98-2.02
一、口算。
0.1×2=9×0.5=0.7×1000=97.4÷100=
0.488×1000=70×0.09=0.002×20=0.07×2=
二、列竖式计算。
0.54×0.49.1×0.175.1×7.71×3.64
0.88×0.040.88×0.350.46×0.591×6.65
三、计算。
0.1×2.2+0.18.9+12×0.88.5+0.94+31.5
4.9×6.9+4.9×3.112.5×0.78×8
0.76×0.07-0.23×0.022800-0.94-9.06
一、口算。
0.1×9=9×0.4=0.008×100=0.403÷1000=
0.34×1000=0.2×0.4=0.2×9=1.1×0.06=
二、列竖式计算。
0.42×0.72.6×33.6×0.480.68×4.93
8.2×0.81.8×0.150.61×3.30.32×96.9
三、计算。
0.2×74+0.124.1+5.8×45.5+9.5+74.5
0.43×0.31+0.43×0.690.5×4.2×0.2
0.79×0.07-0.37×0.05810-3-27
一、口算。
0.9×4=3×0.8=0.08×1000=0.177÷100=
6.14×10=40×0.05=0.09×0.07=1.4×600=
二、列竖式计算。
9.6×0.60.59×0.549.4×4.14×95.4
8.8×0.22.6×6.90.39×0.810.63×4.97
三、计算。
4.4×20+0.120.73+0.91×0.40.57+7.1+1.43
0.35×0.74+0.35×0.2625×8.5×2
5.1×0.7+3.2×0.33500-2-78
一、口算。
0.4×7=2×0.8=0.9×10=0.353÷100=
0.841×100=0.5×0.06=0.3×50=0.1×7=
二、列竖式计算。
0.34×0.81.8×52×0.427.9×20
0.65×0.061.2×6.86.7×0.581.4×9.68
三、计算。
7.8×0.16+0.090.42+0.86×20.54+2.6+2.46
0.45×6.9+0.45×3.10.5×9.8×0.04
6.1×0.5-1×0.5620-4.2-25.8
一、口算。
0.9×7=2×0.5=0.4×1000=0.102÷100=
0.634×1000=0.05×0.5=0.009×800=1.2×0.8=
二、列竖式计算。
2.7×0.030.12×0.970.68×0.354×45
4.3×0.20.19×7.87.3×9.69.4×1.43
三、计算。
5.2×89+0.099.3+58×0.22.6+0.27+7.4
8.6×0.65+8.6×0.355×61×4
0.93×0.09+0.15×0.03220-5.1-74.9
一、口算。
0.9×8=6×0.4=0.001×10=6.63÷100=
3.44×1000=70×0.02=0.5×200=0.4×800=
二、列竖式计算。
6.7×0.36.4×7.10.19×1.48.8×52
0.68×0.80.77×0.188.6×0.85.1×36
三、计算。
98×0.03+0.120.12+4.3×39.5+1.7+20.5
0.88×3.6+0.88×6.4125×13×0.8
5.3×0.6+1.7×0.44800-1.8-58.2
一、口算。
0.4×8=5×0.4=0.07×1000=0.727÷10=
0.024×100=80×0.8=0.06×3=0.12×0.4=
二、列竖式计算。
6.9×0.046.8×3.23.8×6.20.93×8.02
0.24×0.085.6×0.50.18×0.921.8×9.43
三、计算。
0.71×83+1.20.67+2.6×0.51.2+9.7+18.8
0.64×7.5+0.64×2.512.5×48×0.08
6×0.9+1.3×0.3770-2.5-97.5
一、口算。
0.7×8=2×0.7=0.2×1000=88.7÷1000=
78.8×1000=0.7×0.02=0.4×0.04=0.12×0.05=
二、列竖式计算。
0.58×0.067.9×0.390.19×0.40.43×70.9
6.5×0.050.87×0.695.4×6.33.7×7.71
三、计算。
3.7×36+0.90.57+97×60.29+2.6+6.71
6×6.3+6×3.75×98×2
0.86×0.07+0.34×0.02710-0.96-1.04
一、口算。
0.6×3=2×0.8=0.9×10=0.051÷10=
0.774×100=0.03×0.2=0.003×8=0.6×900=
二、列竖式计算。
0.92×0.60.91×0.354.5×8.31.3×9.41
0.92×0.90.53×6.87.9×0.255.5×82.1
三、计算。
0.38×2.7+0.110.32+91×50.75+0.58+5.25
0.79×50+0.79×500.05×1×0.04
0.68×0.06-0.34×0.04410-6-84
一、口算。
0.9×5=6×0.7=0.01×1000=0.794÷1000=
2.88×10=0.05×0.8=0.5×0.09=0.2×0.8=
二、列竖式计算。
0.12×0.70.56×0.327.7×3.20.84×73.7
0.63×0.40.95×7.27.2×0.274.9×33.4
三、计算。
4.7×0.67+0.050.81+8.6×0.90.74+1.2+7.26
8.1×8.3+8.1×1.70.25×1.4×0.8
0.86×0.07+0.33×0.04230-3.6-16.4
一、口算。
0.4×8=9×0.2=0.004×10=0.422÷10=
0.086×1000=1×0.08=0.007×0.04=0.17×400=
二、列竖式计算。
4.2×0.50.94×9.90.57×0.230.24×9.12
7.8×0.090.26×5.44.1×0.30.89×8.34
三、计算。
0.4×0.12+0.119.5+0.26×64.2+9.6+55.8
0.32×0.59+0.32×0.4112.5×46×4
0.96×0.06+0.32×0.048700-5.4-14.6
一、口算。
0.1×9=8×0.2=0.4×10=4.2÷100=
76.2×1000=6×0.2=0.4×0.9=0.03×0.5=
二、列竖式计算。
9.2×0.24.4×0.594.4×0.255.3×3.8
5.1×0.50.75×9.50.65×9.57.3×3.43
三、计算。
0.33×6.5+0.80.58+23×0.40.51+3.1+1.49
8.1×19+8.1×810.5×8×0.02
0.78×0.07-0.3×0.034400-0.32-3.68
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