字典翻译 问答 高中 数学 100道5年级上册数学脱式计算题不要太难而且有答案
问题标题:
100道5年级上册数学脱式计算题不要太难而且有答案
问题描述:

100道5年级上册数学脱式计算题不要太难而且有答案

林铿回答:
  0.4×125×25×0.8   =(0.4×25)×(125×0.8)   =10×100=1000   1.25×(8+10)   =1.25×8+1.25×10   =10+12.5=22.5   9123-(123+8.8)   =9123-123-8.8   =9000-8.8   =8991.2   1.24×8.3+8.3×1.76   =8.3×(1.24+1.76)   =8.3×3=24.9   9999×1001   =9999×(1000+1)   =9999×1000+9999×1   =10008999   14.8×6.3-6.3×6.5+8.3×3.7   =(14.8-6.5)×6.3+8.3×3.7   =8.3×6.3+8.3×3.7   8.3×(6.3+3.7)   =8.3×10   =83   1.24+0.78+8.76   =(1.24+8.76)+0.78   =10+0.78   =10.78   933-157-43   =933-(157+43)   =933-200   =733   4821-998   =4821-1000+2   =3823   I32×125×25   =4×8×125×25   =(4×25)×(8×125)   =100×1000   =100000   9048÷268   =(2600+2600+2600+1248)÷26   =2600÷26+2600÷26+2600÷26+1248÷269   =100+100+100+48   =348   2881÷43   =(1290+1591)÷434   =1290÷43+1591÷43   =30+37   3.2×42.3×3.75-12.5×0.423×16   =3.2×42.3×3.75-1.25×42.3×1.6   =42.3×(3.2×3.75-1.25×1.6)   =42.3×(4×0.8×3.75-1.25×4×0.4)   =42.3×(4×0.4×2×3.75-1.25×4×0.4)   =42.3×(4x0.4x7.5-1.25x4x0.4)   =42.3×[4×0.4×(7.5-1.25)]   =42.3×[4×0.4×6.25]   =42.3×(4×2.5)   =4237   1.8+18÷1.5-0.5×0.3   =1.8+12-0.15   =13.8-0.15   =13.65   6.5×8+3.5×8-47   =52+28-47   =80-47   (80-9.8)×5分之2-1.32   =70.2X2/5-1.32   =28.08-1.32   =26.76   8×7分之4÷[1÷(3.2-2.95)]   =8×4/7÷[1÷0.25]   =8×4/7÷4   =8/7   2700×(506-499)÷900   =2700×7÷900   =18900÷900   =21   33.02-(148.4-90.85)÷2.5   =33.02-57.55÷2.5   =33.02-23.02   =10   (1÷1-1)÷5.1   =(1-1)÷5.1   =0÷5.1   =0   18.1+(3-0.299÷0.23)×1   =18.1+1.7×1   =18.1+1.7   =19.8   还有的从书上找吧已经写了21道了赞同1|评论2011-2-1116:44知道778811|一级   小学六年级简便计算   1.(1/69+2/71)乘23+25除以71   =1/69*23+2/71*23+25/71   =1/3+(46/71+25/71)   =1/3+1   =4/3   2.(1+1/2)乘(1-1/2)乘(1+1/3)乘(1-1/3)乘.乘(1+1/9)乘(1-1/9)   =3/2*1/2*4/3*2/3...*10/9*8/9   =1/2*10/9(中间的都约去了)   =5/9   3.1/2乘3+1/3乘4+.+1/19乘20   =1/2-1/3+1/3-1/4+...+1/19-1/20   =1/2-1/20   =9/20   4.1/27+505/2727+131313/272727   =1/27+5*101/(27*101)+13*10101/(27*10101)   =1/27+5/27+13/27   =19/27   5.100-98+96-94+.+4-2   =(100-98)+(96-94)+...(4-2)   =2+2+...+2(共有25个)   =2*25   =50
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