| Grade | Scale | Scale 2 | Grade Description | US Grade | Notes |
|---|---|---|---|---|---|
| E | 9,000 - 10,000 | 90,000 - 100,000 | Excellent (Excelente) | A | |
| MB | 7,000 - 8,990 | 70,000 - 89,990 | Very Good (Muy Bueno ) | B | |
| B | 6,000 - 6,990 | 60,000 - 69,990 | Good (Bueno) | C | |
| 5,000 - 5,990 | 50,000 - 59,990 | Good (Bueno) | D | Lowest passing grade | |
| 3,000 - 4,990 | 30,000 - 49,990 | Regular | F | ||
| NM | 1,000 - 2,990 | 10,000 - 29,990 | Needs Improvement (Necesita Mejorar ) | F |