This is awful. If you miss one question it drops you ten points, but if you get one right you only get one point. That doesn't make sense. A kid that's frustrated already and doesn't understand isn't going to keep after it and actually learn something. 120 questions for an 8th grader is a bit ridiculous, especially when the set percentage is 90% and the teacher isn't actually teaching anything.
How I Use It
My children are assigned this instead of actual teacher taught work in the classroom - they are trying to learn math at home alone.