2005×2003/2004+1/2004(怎样用简便方法计算)
问题描述:
2005×2003/2004+1/2004(怎样用简便方法计算)
答
2005×2003/2004+1/2004
=2005*(1-1/2004)+1/2004
=2005-2005*1/2004+1/2004
=2005-1/2004*(2005-1)
=2005-1
=2004是对的吗对的你怎么敢确定敢啊