Analyze them! Why did you miss what you missed? Did you:
- not know the content?
- know the content but messed up on process?
- know the content but not recognize / realize what the question was asking? (they do have sort of their own "language" going on)
- know the content and process but made a careless mistake?
- etc.
If you know why you missed a particular problem, you can take steps to address whatever the issues were. If you didn't know a piece of content, you go learn it. If you knew the content but stumbled over the process, you practice the part of the process that you need to improve—or you find another way to do the problem that doesn't involve having to do the part of the math that messed you up. If you made a careless mistake, you figure out what new habit(s) you can build to minimize the chances of that type of mistake in general. And so on.
Next, in general, don't do ALL of the OG problems of a certain type all in a row. Here's why (and how to use problem sets in a more effective way in general):
http://www.beatthegmat.com/mba/2017/01/ ... est-part-1There are always more problems to do—a different edition of an official guide, for instance. But your goal isn't to do a million problems; your goal is to make sure that you're learning what you need from the problems that you are doing. So let's talk a little more about study process.
First, let's set the right mindset:
https://www.manhattanprep.com/gmat/blog ... lly-tests/And a bit more on that:
https://www.manhattanprep.com/gmat/blog ... -the-gmat/Next, at what stage are you in your studies? It sounds like you might be in the "practice content" phase—so you already learned FDP content and now you're practicing it? (Or did you go straight to practice problems? A lot of people do that—but it is a good idea to make sure you've taken some time to learn the underlying material first.) What study materials are you using besides the OG?
What's your goal score? Have you taken a practice test yet? What were your scores and what are your (very general) strengths and weaknesses? Or if you are further into your studies, what were your results on your most recent practice test and what were your strengths and weaknesses?
If you want to read more about developing a study plan in general, take a look at this:
https://www.manhattanprep.com/gmat/blog ... our-score/