Mathematics Extension 1
Maths Extension 1 adds harder, faster maths on top of Advanced — calculus, proof and more.
Quick-moving and demanding. Built on top of Advanced, so it’s a real extra load.
Proof, harder application questions, and keeping pace when topics stack up.
This is the spread of scaled marks across everyone who took the subject — not how hard it is. A high mean usually means a strong cohort sat it. The figures are from UAC’s latest scaling report (2025), with the year-by-year trend above.
Where might my mark scale to?
Set the HSC mark you’re aiming for. We’ll show a band of where that tends to scale — never a single number, never a prediction.
Your exam mark, out of 50 — a 1-unit course.
Intuition runs small-group HSC Maths Extension 1 courses — expert teaching to the NESA syllabus, marked practice and real exam preparation, at our Epping campus or live online.
See our HSC Maths Extension 1 courseHow does HSC Mathematics Extension 1 scale?
In the UAC Preliminary Report on the Scaling of the 2025 NSW HSC, Mathematics Extension 1 had a scaled mean of 39.7 out of 50 per unit, and its scaled mean has been very stable over recent years. Scaling reflects how academically strong the cohort is — not how hard the subject is — and there is no exact HSC-to-scaled conversion, so it's best read as a range, never a single number.
How hard is HSC Mathematics Extension 1, and how much work is it?
Mathematics Extension 1 is high effort — typically 5–6 hrs/wk. Quick-moving and demanding. Built on top of Advanced, so it’s a real extra load. Where students most often struggle: Proof, harder application questions, and keeping pace when topics stack up.
What does HSC Mathematics Extension 1 build?
Maths Extension 1 adds harder, faster maths on top of Advanced — calculus, proof and more. It especially develops analytical reasoning, numeracy & modelling, and independent research.
Who should take HSC Mathematics Extension 1?
Students who enjoy maths and want to be stretched, not just assessed. It may be more of a grind for students taking it mainly for the scaling — the workload bites either way.
Where’s this data from?
Scaling figures are from the UAC Preliminary Report on the Scaling of the 2025 NSW HSC (Tables A1, A3). Scaled marks are out of 50 per unit.
There is no exact HSC-to-scaled conversion — for any one HSC mark there is a range of scaled marks, which is why we only ever show a band.
The skills, effort and “who it suits” notes are Intuition Education’s editorial guidance, not UAC data.
Why we don’t do an ATAR calculator →