| 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 |