Ohhh, multiple choice. That's not good, if so. I have a good guesser here also. I would think a lot of our kids are good guessers!

I would assess her yourself, for your own peace of mind. It wouldn't be too hard. I just did a bit of this the other day with my DD because I suspected she didn't really understand a concept but just applied the "take the numbers in this problem and do something with them" approach, and it happened to work. (I was right, too.)