1.625×2005+2005×八分之三-2005

问题描述:

1.625×2005+2005×八分之三-2005

1.625×2005+2005×八分之三-2005
=11/8-2005+3/8*2005-2005
=2005*(113/8+3/8-1)
=2005*1
=2005