The Gunners moved eight points clear at the top of the table after a 2-0 north London derby win over Tottenham at the weekend but Arteta feels that his team will need to keep up their superb form at the top of the table if they are to become champions.
Asked if he thinks that his team will need to exceed 90 points, Arteta said: "100 per cent, yes I do.
"I don’t want to do too much calculation, it’s just how we’re going to prepare (for) Manchester United and play well to win.
"But if you ask me about the points, yeah it’s happened in the last few seasons so it will demand almost perfection."
Arteta was pleased to see his team keep emotional control during the fiery match and urged his players to continue in the same manner.
He said: "To have the emotional control in these occasions is extremely important.
"It’s something that we discussed in the week. They are young and they start to believe more and more and they start to have these experiences.
"There is nothing better than winning and playing the way we played. It’s great and going in the dressing room and just feeling the joy and the togetherness around the team and how much it meant for them is special.
"We know that we are here because of the way we play and the way that we are and the way that we live together and the unity that we have.
"We must not forget that because tomorrow we have to do the same and we have to do exactly the same to carry on the form that we have at the moment."