北师大版四年级数学下册小数乘法专项练习题85.docx
《北师大版四年级数学下册小数乘法专项练习题85.docx》由会员分享,可在线阅读,更多相关《北师大版四年级数学下册小数乘法专项练习题85.docx(11页珍藏版)》请在冰豆网上搜索。
北师大版四年级数学下册小数乘法专项练习题85
7.8×0.2+7.8×0.80.05×3.1×0.04
0.83×0.07+0.44×0.046000-0.17-2.83
一、口算。
0.6×5=5×0.2=0.6×10=2.2÷100=
60.1×10=0.4×0.9=0.01×600=0.02×7=
二、列竖式计算。
0.15×0.023.2×0.76.5×0.437×6.65
6.7×0.090.13×0.940.81×3.14.9×26
三、计算。
7.4×0.25+0.095.5+31×80.9+0.86+8.1
9×19+9×815×56×0.08
0.73×0.08-0.43×0.05840-5.7-84.3
一、口算。
0.8×6=7×0.9=0.2×10=28.8÷10=
1.16×10=6×0.09=0.01×0.3=0.2×90=
二、列竖式计算。
3.3×0.022.2×0.587.4×7.66.5×7.46
1.7×0.090.74×8.30.6×0.459.5×86.6
三、计算。
0.11×0.34+0.086.1+0.85×0.60.6+9.3+1.4
0.17×0.4+0.17×0.61.25×39×0.02
8.9×0.9+2.1×0.3460-0.24-3.76
一、口算。
0.8×4=2×0.5=0.008×10=7.86÷100=
2.24×100=0.07×0.06=0.3×0.03=0.03×0.7=
二、列竖式计算。
3.7×0.90.48×70.21×7.90.6×5.74
0.43×0.090.91×0.330.67×0.780.74×9.6
三、计算。
0.93×7.6+0.110.91+0.81×99.9+1.1+50.1
7.7×56+7.7×442.5×5.4×8
9.7×0.9+1.6×0.2370-0.19-6.81
一、口算。
0.8×2=2×0.5=0.4×100=0.479÷10=
5.09×100=0.03×0.4=0.04×600=0.13×0.3=
二、列竖式计算。
0.15×0.55.1×0.853.5×40.3×7.85
0.73×0.090.89×0.421×0.441.3×47.4
三、计算。
59×6+0.078+0.25×0.30.47+1.2+8.53
0.32×14+0.32×865×39×0.08
9.1×0.9+2×0.5290-9.9-70.1
一、口算。
0.4×6=7×0.8=0.7×10=12.1÷100=
40×1000=0.3×0.02=0.09×0.06=0.09×0.06=
二、列竖式计算。
0.16×0.50.83×0.957.3×0.639.4×32.7
5.1×0.40.65×7.64.7×3.64.7×19.7
三、计算。
9×5.3+0.060.9+0.79×23.4+9+76.6
0.5×6.5+0.5×3.50.05×2.2×0.02
6.9×0.7+4.6×0.2290-4.4-65.6
一、口算。
0.6×2=4×0.4=0.4×1000=17.9÷1000=
0.317×100=70×0.08=0.002×6=1.1×0.08=
二、列竖式计算。
0.11×0.61.4×7.40.26×9.20.74×4.89
0.81×0.062×3.14.8×0.740.14×3.45
三、计算。
0.6×5.1+0.70.35+0.79×70.64+6.2+2.36
0.14×83+0.14×170.05×1.1×0.2
5.5×0.5-4×0.22500-0.79-6.21
一、口算。
0.4×6=3×0.5=0.01×1000=7.29÷10=
56.3×100=60×0.03=0.08×4=1.3×0.9=
二、列竖式计算。
7.1×0.60.31×2.56.1×0.391.6×18
0.95×0.50.79×3.50.1×3.60.19×26.6
三、计算。
83×20+0.50.96+65×0.79.3+6.8+0.7
0.5×16+0.5×8425×8.6×4
8.6×0.5-1.5×0.5930-0.98-3.02
一、口算。
0.4×5=8×0.3=0.008×100=62.9÷10=
0.838×1000=10×0.7=0.007×300=1×0.5=
二、列竖式计算。
0.92×0.079.7×0.140.13×0.410.9×7.42
4.7×0.039.6×9.64.4×0.861.5×48
三、计算。
3.4×0.02+0.070.8+70×50.59+0.23+1.41
5.4×0.14+5.4×0.865×0.19×0.08
9.1×0.7-2.9×0.22900-0.26-8.74
一、口算。
0.6×9=3×0.7=0.07×1000=0.777÷1000=
1.01×10=1×0.5=0.02×0.09=1.5×7=
二、列竖式计算。
5.1×0.20.12×0.680.49×0.61.6×1.2
2.3×0.41.6×0.678.5×2.48.5×1.9
三、计算。
2.8×9.8+0.96.8+0.25×50.66+7.5+2.34
7×46+7×5425×35×0.02
0.95×0.08-0.38×0.03640-0.62-4.38
一、口算。
0.5×7=9×0.8=0.01×100=0.683÷100=
78.9×100=0.08×0.07=0.003×0.02=0.09×0.03=
二、列竖式计算。
0.78×0.080.27×0.916.8×4.21×2.37
0.83×0.77.5×0.44.5×3.70.63×9.71
三、计算。
4×0.61+15.3+0.4×0.80.5+4+2.5
4.5×0.67+4.5×0.332.5×0.79×0.02
7.4×0.7+2.2×0.48800-6-74
一、口算。
0.3×8=4×0.4=0.08×10=69.7÷100=
8.67×1000=0.2×0.07=0.4×90=0.2×0.2=
二、列竖式计算。
0.24×0.030.41×0.523.6×4.20.79×75.5
6.2×0.020.87×8.40.52×0.954.8×8.59
三、计算。
2.6×0.05+0.90.78+0.93×0.41.3+0.58+8.7
2.9×65+2.9×351.25×7.3×0.02
5.7×0.9-2.2×0.58500-3.3-96.7
一、口算。
0.5×5=9×0.9=0.007×1000=0.695÷10=
2.36×10=7×0.04=0.9×3=0.03×200=
二、列竖式计算。
4.2×0.91.1×6.50.59×0.270.79×2.76
2.5×0.37.6×0.80.34×10.92×2.99
三、计算。
7.6×22+0.093.1+9.4×50.45+1.6+7.55
0.61×34+0.61×661.25×3.7×0.02
0.72×0.08+0.26×0.02610-0.77-6.23
一、口算。
0.3×3=2×0.2=0.7×1000=6.69÷1000=
75.9×100=2×0.04=0.002×0.5=0.12×20=
二、列竖式计算。