I completely agree, Val. Long's books don't give much in the way of practice problems. I have seen this as a pro at DS8's stage, but it could be a definite con under different circumstances.
Since I've approached geometry and algebra as a first pass for a younger kid in a spiral-ish curriculum rather than a "he's done this for high school credit," going light on the practice problems is fine. But it certainly wouldn't be appropriate for all kids in all situations.
As you rightly note, though, it is easy enough to supplement with more practice. And I think she does a good job of making stuff clear without oversimplifying.
