Most math quizzes use a points-per-question system: each problem is worth a set number of points, and your final score becomes a percentage of total points. That’s why two quizzes with the same difficulty can yield different percentages if one includes more multi-step problems.
Another common approach is partial credit. On multi-step algebra or geometry questions, teachers may award points for correct setup even if the final answer is wrong. This matters for students aiming for “quiz math 70 US” because it can turn a “hard” quiz into a “recoverable” quiz.
To study effectively, you need to know which grading style you’re facing. If partial credit is common, your goal shifts from “get the final answer” to “get each step.” If partial credit is limited, you must focus more on correctness and checking.