Wow, you're kiddo has been busy! I'm going to have to get dd to do more problems if we want to move her up it appears. The biggest issue that we've had is that she knows everything they've introduced so far and her patience for doing the work has been slim. The one area where she missed those two questions was due to inattentiveness and just clicking on something quickly to get it to move on.

We do certainly need to work on paying attn, though, and being more patient.
Study Strategies for Accelerated Learners