2 rules questions: Overcoming DR that you have and summoning

[Hobit of Bree]

OK,
Two questions

• If you have DR/evil 2 and make a natural attack, do you overcome DR/evil 5? DR/good 5? Not even sure the numbers matter, but put them in there just in case.
  
• A summoner has a creature in a fight. He summons a second one as a standard action (using the summoner ability "summon monster") which will cause the first to disappear. AFAIK all monsters summoned act on the summoner's turn. Can the summoner have monster #1 act, then have the summoner act, then have the newly summoned monster #2 act?
  

[Diego Rossi]

Hobit of Bree wrote:

OK,

Two questions

• If you have DR/evil 2 and make a natural attack, do you overcome DR/evil 5? DR/good 5? Not even sure the numbers matter, but put them in there just in case.

No, a creature with DR/magic will overcme DR/magic, but to overcome the other kinds of DR you need the appropriate subtype (evil/good, etc.) or a appropriate ability like "XX creature attacks count as silver".

Hobit of Bree wrote:

A summoner has a creature in a fight. He summons a second one as a standard action (using the summoner ability "summon monster") which will cause the first to disappear. AFAIK all monsters summoned act on the summoner's turn. Can the summoner have monster #1 act, then have the summoner act, then have the newly summoned monster #2 act?

Yes.