What percentage is each grade in IGCSE Additional Mathematics?
Grade boundaries change every session, so percentages aren't fixed. Based on the Cambridge June 2026 boundaries for extended · papers 11, 21, here's the percentage needed for each grade in Additional Mathematics (0606).
| Grade | Min mark | Min percentage |
|---|---|---|
| A* | 141/160 | 89% |
| A | 122/160 | 77% |
| B | 92/160 | 58% |
| C | 62/160 | 39% |
| D | 49/160 | 31% |
| E | 36/160 | 23% |
Extended · Papers 11, 21 · maximum mark 160 · June 2026.
FAQ
What percentage is a A* in IGCSE Additional Mathematics?
In June 2026 (Extended · Papers 11, 21), a A* needed about 89% (141/160). Boundaries shift slightly each session.
What percentage is a pass (C) in IGCSE Additional Mathematics?
A grade C needed roughly 39% in June 2026. Grade 4 / C is generally treated as a standard pass.
Are these IGCSE Additional Mathematics percentages official?
They are derived from the official Cambridge grade threshold tables. Boundaries are set per session, so use these as a guide and confirm with your exam board.