| A | Accuracy marks | Awarded for a correct result following on from a correct method (or where method is not shown) |
|---|---|---|
| B | Independent marks | Marks awarded independently of method |
| M | Method marks | Awarded for a method which could lead to a correct answer. |
| DM | Dependent method marks | Method mark awarded only if a previous mark has been awarded. |
| ft | Follow through | Marks awarded for answers consistent with a mistake in an earlier step |