## How many different forms are there?

### How many different forms are there?

So how many different forms of the GRE math subject exam are there out there? Anybody know what the chances are that if we took the test in October we'll get the exact same form in November?

### Re: How many different forms are there?

I'm sure they have a mechanism for preventing just that. I mean, they have your name, and they know what tests you have taken. I'm sure they aren't going to give you the same exact test. I wouldn't be surprised if you see a few questions on the Nov test that were on the Oct test, though.

### Re: How many different forms are there?

I dunno. I think the test I took in October may have been the exact same one I took last November. Of course I didn't remember the answers

### Re: How many different forms are there?

even if you think you've seen a problem before you probably haven't. you should know by now that there are many ways to permute problems to get 'similar'-looking problems that fall to the same methods but differ by factors of 2, or sqrt(x). you'll never remember that factor of 2 or the different prime factors or the extra squared term because all you remember from the problem was its rough 'shape' and the method of solution.

### Re: How many different forms are there?

right, so clearly the best thing to do is to learn how to do the problems you missed, as opposed to just remembering answers. Even though, getting similar problems, is indeed a big advantage.