My DS9 loves these books because of the storyline. He is accelerated 2 years in math (and jumps up one more year next year). I have never made him do the questions (if I homeschooled I would), but he loves reading the stories and seems to absorb quite a bit. He has done the first 3 books, and is begging me to get the next 3 (trig. geo. and something else, I'd have to check). Anyway, he recalls a lot of what he has learned just from reading the books.
I have read the fractions and decimal books and thought they were a hoot. I still have to read the alegbra ones, but they helped me with my math, so I cannot imagine they would not help a bright child.
