How to work out 9 out of 10
Divide the score by the total and multiply by 100: 9 ÷ 10 = 0.9, and 0.9 × 100 = 90%.
That means 1 answer was wrong, and each question was worth 10% of the total. One more correct answer (10/10) would be 100%.
Grading chart for 10 questions
| Wrong | Score | Percent | Grade |
|---|---|---|---|
| 0 | 10/10 | 100% | A+ |
| 1 | 9/10 | 90% | A− |
| 2 | 8/10 | 80% | B− |
| 3 | 7/10 | 70% | C− |
| 4 | 6/10 | 60% | D− |
| 5 | 5/10 | 50% | F |
| 6 | 4/10 | 40% | F |
| 7 | 3/10 | 30% | F |
| 8 | 2/10 | 20% | F |
| 9 | 1/10 | 10% | F |
| 10 | 0/10 | 0% | F |
Letter grades use the common US scale (A ≥ 93%, B ≥ 83%, C ≥ 73%, D ≥ 63%, with ± bands). Your school may use different cut-offs.