The orioles played 90 games and have won 70% of them. how many games has the team won?

To answer this, all you have to do is multiply 90 by 0.7!
so the final answer is 63 games.

Well, first of all, in mathematics, the word "of" represents multiplication. Also, when ever a number has the percentage sign(%). It means it is divided by 100.That is, its denominnator is 100. So in this case, 70% is 70/100.
    The questions says they won 70% OF the games. That simply means;
70/100×90
 When you calculate that, you will get 63. Which means they won 63 of the games. Hope i helped. Have a nice day.