2004/2005×2003简便计算还有 2004/2005×2006

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/22 13:18:21
2004/2005×2003简便计算还有2004/2005×20062004/2005×2003简便计算还有2004/2005×20062004/2005×2003简便计算还有2004/2005×20

2004/2005×2003简便计算还有 2004/2005×2006
2004/2005×2003简便计算
还有 2004/2005×2006

2004/2005×2003简便计算还有 2004/2005×2006
2004/2005×2003
=2004/2005×(2005-2)
=2004/2005×2005-2004/2005×2
=2004-4008/2005
=2002+2-4008/2005
=2002+2/2005
=2002又2/2005

(2004/2005)×2003
=(1-1/2005)×2003
=2003-2003/2005
=2002又2/2005

2004/2005*2006=(2005-1)...................................

道理都一样2004/2005*2003=(1-1/2005)*2003=2003-2003/2005=2002+2/2005