another problem :)

[ichabod801]

You just needed scores.append(float(score)). And you've got the if/elif/else structure for the choice of action, that's all you need to check the value. One check for < 0, one check for > 100, and one check to enter the score. If you sort (without reverse), scores[0] is the lowest number. scores[len(scores) - 1] is the highest value.