To calculate your final score, we add up all the points from all your right answers. Hard questions are worth more points than easy questions, but since every item is different, two games with the same number of right answers can have different final scores.
The points from wrong answers don’t count against you, but when you get an item wrong, you will see easier questions again (which are worth less points!).
So, what's the best way to get good scores? Keep answering questions correctly! When you get answers right, the questions will get harder, giving you a chance to earn more points.