Are these worth it? I have yet to buy them. Are the questions pretty straight forward and something my kid can answer as long as she has read the history core, bible core and literature core?

I have them for my 3 children...UG, D, and R. I think that the R is worth it. It has topic questions and great essay questions on it. It gives the chance for the kids to do an essay each week, which is great practice. The other levels are evaluations and are good if you do not wrap up each week with your child. I have used them once so far this year. After our discussion, I notice that the kids do not have to do the evaluation, it would be overkill. HTH!!