Questions can be worth more or less (including zero) depending on your answer. The movement of the progress bar may be uneven because of how far and in which direction would you need to move? If you started at 4 on the number line and moved, you would need to move 3 integers to the right. You would need to move 13 integers to the left. You would need to move 5 integers to the left. You would need to move 4 integers to the right.