(1+2007/1+2008/1)*(2007/1+2008/1+2009/1)-(1+2007/1+2008/1+20
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/09/22 20:24:29
(1+2007/1+2008/1)*(2007/1+2008/1+2009/1)-(1+2007/1+2008/1+2009/1)*(2007/1+2008/1)简算过程
(1+1/2007+1/2008)(1/2007+1/2008+1/2009)-(1+1/2007+1/2008+1/2009)(1/2007+1/2008) =(1/2007+1/2008+1/2009)+(1/2007+1/2008)(1/2007+1/2008+1/2009)-(1/2007+1/2008)-(1/2007+1/2008+1/2009)(1/2007+1/2008) =1/2009
简算:(2009+1/2007)*1/2008
|1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/20
(2007+2008*2006分之2007*2008-1)+2007
(1)2007/2008×2009,简算三道
2008+2009*2007/2008*2009-1
2008×2009-1分之2008+2009×2007
化简:|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1
(1+1/2007+1/2008)*(1/2007+1/2008+1/2009)-(1+1/2007+1/2008+1/
2009又1/2007*2007/2008
1/2009—1/2010+1/2008-1/2009+1/2007-1/2008+1/2006-1/2007+1/20
1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|+.+|1/3-1/2|+|
|2009/1-2008/1|+|2008/1-2007/1|+|2007/1-2006/1|+.+|3/1-2/1|+