Passports/ID cards EEA PR application

Does one need to send all uncancelled passports and ID cards when applying for a document certifying PR or just a current one as proof of identity and EEA nationality?
Also, what does 'cancelled passport' actually mean; when I got a new passport/ID card, the Embassy staff cut a corner off the old one, does that count as cancelled?
Thanks in advance.

When I done mine EEA3, naturalization, British passport I have only send my current passport. I had one before but it was expired before I even entered UK for the first time.

Great, thanks for your input

If I have more than one valid passport/ID card; would I be required to submit all of them with the application?
I would like to travel abroad for a holiday a few days after I send the PR application off, hence why I am checking.

Thanks in advance.