1+1/2007×1/2008-1/2007+1/2008
=1+1/2007×1/2008-(1/2007-1/2008)
=1+1/2007×1/2008-1/2007×1/2008
=1
1+1/2007X1/2008-1/2007+1/2008
1个回答
相关问题
-
(1+1/2007+1/2008)*(1/2007+1/2008+1/2009)-(1+1/2007+1/2008+1/
-
|1/2009-1/2008|-|1/2008-1/2007| =1/2008-1/2009-1/2007+1/2008
-
（1-1/2008）+（2-1/2008*2）+（3-1/2008*3）+...+（2007-1/2008*2007）+
-
|1/2007－1/2006|＋|1/2008＋1/2006|＋|1/2008-1/2007|
-
2007X2009X(1/2007X2008+1/2008X2009)等于多少啊,
-
（1+2+3+……+2007+2008+2007……+3+2+1）/2008
-
（2007+2008*2006分之2007*2008-1）+2007
-
（1+2+3+…+2007+2008+2007+…+3+2+1）÷2008=______．
-
化简：|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1