The copyright allows 100 copies per page. There are only 30 pages, so I would consider it overpriced for one child, but worth it for a family or teacher. The addition problems are of the form 3 ___ = 5 rather than the expected 3 2 = _____. I'm not sure how much speed my child is gaining on his math facts, but he does the pages without complaint or dawdling which is unusual for this child. The map skills (3 S, 4 W, etc.) are harder than the addition problems, based on my second grader who never makes a mistake on the addition part, but usually makes one or two on the map part. Because he likes them, I went ahead and bought the subtraction and multiplication ones too.