北师大版四年级数学下册小数乘法专项练习题89.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89
一、口算。
0.5×5=9×0.3=0.009×1000=7.6÷100=
0.652×1000=4×0.6=0.009×300=0.6×0.7=
二、列竖式计算。
9.8×0.80.72×0.560.81×9.10.7×1.13
0.32×0.80.23×0.880.36×96.9×96
三、计算。
3.1×0.24+0.090.97+5×87.9+0.65+12.1
0.62×3.2+0.62×6.8125×6×0.02
0.79×0.05-0.4×0.02290-0.73-8.27
一、口算。
0.8×6=9×0.6=0.5×100=0.596÷100=
9.6×10=6×0.8=0.8×500=0.07×300=
二、列竖式计算。
5.2×0.050.55×0.288.6×0.49.4×4.71
1.2×0.60.35×0.851×0.680.53×56.3
三、计算。
86×1.2+0.110.13+40×31.2+0.38+88.8
0.39×20+0.39×800.25×38×4
9.1×0.6-3.1×0.3240-0.16-0.84
一、口算。
0.1×9=7×0.9=0.4×100=7.02÷100=
96.4×10=0.9×0.08=0.06×400=1.1×20=
二、列竖式计算。
0.86×0.57.9×0.870.96×0.780.55×4.35
9.3×0.30.74×8.59.8×0.463×4.34
三、计算。
0.02×8.9+0.90.24+50×50.29+1.5+2.71
9.9×0.59+9.9×0.411.25×52×2
0.97×0.07-0.23×0.03190-0.23-4.77
一、口算。
0.6×6=8×0.2=0.03×1000=3.41÷100=
0.437×10=9×0.07=0.05×80=0.02×30=
二、列竖式计算。
5.5×0.040.85×8.30.13×0.67.6×4.36
0.46×0.070.37×0.294.8×4.59.3×9.58
三、计算。
98×0.1+0.19.8+97×0.40.41+4.9+7.59
0.55×0.41+0.55×0.591.25×70×0.08
7.4×0.5-1.1×0.33200-0.72-7.28
一、口算。
0.4×3=7×0.2=0.1×100=11.1÷1000=
0.904×10=1×0.05=0.2×0.08=1.6×6=
二、列竖式计算。
0.31×0.90.89×5.20.92×0.430.95×8.73
0.68×0.029.3×1.20.88×7.50.4×4.81
三、计算。
0.35×0.14+11.8+0.41×78.5+7.7+31.5
6.6×71+6.6×2912.5×5.1×0.04
8.5×0.5-2.9×0.36300-0.69-3.31
一、口算。
0.2×6=2×0.4=0.001×1000=0.197÷10=
0.372×100=0.04×0.9=0.2×700=1.6×3=
二、列竖式计算。
0.36×0.94.4×0.240.25×0.778.7×35.2
0.18×0.60.43×2.80.65×7.10.5×51.6
三、计算。
0.34×9.5+13.3+0.68×44.7+0.28+55.3
1.8×0.48+1.8×0.520.25×2.5×4
0.57×0.05+0.21×0.02590-8.7-61.3
一、口算。
0.4×9=5×0.3=0.7×100=87÷1000=
5.23×100=10×0.06=0.006×0.05=0.04×0.6=
二、列竖式计算。
3.6×0.060.75×0.770.72×0.47.9×12.7
5.4×0.090.73×1.80.68×0.99.9×4.9
三、计算。
3.2×66+1.10.39+3.2×50.9+2.8+5.1
1.3×82+1.3×180.5×49×2
8.3×0.5-2.1×0.4610-7.2-62.8
一、口算。
0.7×4=9×0.2=0.03×100=0.126÷1000=
65.1×10=0.7×0.05=0.006×900=0.2×0.05=
二、列竖式计算。
0.35×0.047.1×0.778.8×0.520.51×2.32
4.5×0.30.62×2.78×0.650.37×4.97
三、计算。
0.46×44+0.10.43+0.57×0.20.35+0.8+7.65
5.3×51+5.3×490.25×26×4
8×0.6-2.3×0.3890-4.2-45.8
一、口算。
0.2×9=5×0.3=0.03×100=11.7÷100=
0.362×100=6×0.2=0.08×50=0.14×0.5=
二、列竖式计算。
0.31×0.020.55×9.50.8×5.20.75×80.9
0.84×0.20.94×6.62×0.240.88×30.2
三、计算。
63×3.3+0.58.4+8.8×0.74.9+0.74+85.1
1.1×0.64+1.1×0.3625×0.51×0.08
0.87×0.06-0.44×0.051900-4.7-75.3
一、口算。
0.6×4=9×0.6=0.7×100=0.508÷100=
6.47×10=2×0.08=0.6×0.8=1.2×600=
二、列竖式计算。
3.5×0.050.42×2.23.9×4.92.3×9.27
0.32×0.97.3×5.50.67×0.480.7×9.37
三、计算。
4.3×8.8+0.050.24+6.8×0.22.2+9.7+7.8
0.57×42+0.57×580.5×17×0.08
7×0.6+2.7×0.24200-1.5-38.5
一、口算。
0.9×2=9×0.8=0.6×10=98.5÷100=
0.529×10=30×0.2=0.1×40=1.2×0.5=
二、列竖式计算。
8.3×0.80.68×3.41.9×0.517.3×34.6
4.3×0.56×5.30.47×36×83.3
三、计算。
6×2.9+0.110.51+8.5×0.50.4+0.32+9.6
4.3×7.2+4.3×2.82.5×89×0.08
5.9×0.7+3×0.2910-0.81-3.19
一、口算。
0.8×2=3×0.9=0.001×1000=7.6÷1000=
9×100=90×0.5=0.8×70=0.1×0.7=
二、列竖式计算。
0.12×0.26.4×1.42.4×0.910.52×6.88
0.79×0.47.2×5.90.8×0.80.69×8.5
三、计算。
4.7×3.1+0.050.35+78×0.29+8.1+61
0.33×99+0.33×15×61×0.04
0.9×0.08+0.15×0.05980-1.9-78.1
一、口算。
0.6×3=6×0.3=0.9×1000=0.99÷100=
0.513×100=0.9×0.5=0.05×0.03=1.1×200=
二、列竖式计算。
6.3×0.094.4×3.20.14×8.92.6×3.9
0.61×0.099.1×0.885.5×80.15×6.44