AMC vs AIMO: Which Maths Competition Should Your Child Prepare For?
Parents often ask whether the Australian Mathematics Competition, usually called AMC, is easier than the Australian Intermediate Mathematics Olympiad, usually called AIMO. The short answer is yes: AMC is the broader entry point, while AIMO is a more demanding olympiad-style problem-solving exam; entry suitability and later selection are separate questions.
That does not mean AMC is only for beginners. AMC includes accessible questions at the start and much harder problems near the end. It is a good first benchmark for students who want to test mathematical reasoning beyond school worksheets. AIMO is different. It asks students to sustain deeper thinking for longer and to write convincing mathematical arguments, not just choose an answer.
AMC to AIMO: check reasoning, not just the award
An AMC Distinction is a useful signal, not a course placement test. Ask how the child reaches and explains an answer before choosing longer olympiad preparation.
| What you observe | Try this check | Suggested next step |
|---|---|---|
| Gets the answer but cannot explain a key step | Ask for a diagram, definition or reason for that step. | Continue AMC reasoning practice; begin short written explanations. |
| Enjoys a long problem and can justify each step | Try an official AIMO sample, including written-solution work. | Inspect the AIMO curriculum; build proof and checking habits. |
| Strong school maths, but unfamiliar problems cause an immediate stop | Break one problem into small cases and discuss a first strategy. | Start with accessible AMC extension rather than choosing by award alone. |
Original example: checking a few odd numbers can suggest that an odd number squared is odd. Explaining that (2k + 1)² = 2(2k² + 2k) + 1 establishes it for every integer k. The useful distinction is a pattern noticed versus a statement justified; this small example is not an AIMO admission test.
Try AIMO through the complete course curriculum →
Reviewed 3 October 2026. AMT AIMO format and sample papers. Worked examples and suggested routines are Ace Achievers guidance; they are not official entry or placement rules.
Quick Comparison
| Area | AMC | AIMO |
|---|---|---|
| Best fit | Broad Years 3-12 cohort | Strong Years 7-10 problem solvers |
| Main skill | Pattern recognition, reasoning, speed | Deep problem solving and written solutions |
| Question style | Multiple choice and short answer | Extended problems requiring explanation |
| Preparation style | Topic breadth plus timed practice | Olympiad-style methods and proof habits |
| Good next step | AMC Advanced or AIMO foundation work | AIMO course, olympiad problem sets |
Which Exam Should Come First?
For most students in Years 7-8, AMC should come first. It gives parents and teachers a useful diagnostic: can the student read unfamiliar problems carefully, choose a strategy, and avoid common traps under time pressure?
If a student already performs strongly in AMC, enjoys non-routine maths, or regularly solves extension problems without needing examples first, AIMO can become the next target. The move from AMC to AIMO is not just a jump in difficulty. It is a jump in style.
How Preparation Should Differ
AMC preparation should include:
- number, algebra, geometry, measurement, data and probability refreshers;
- timed problem sets;
- careful review of wrong answers;
- practice identifying when a problem is testing logic rather than formula use.
AIMO preparation should include:
- divisibility, modular arithmetic and number theory;
- geometry proof habits;
- combinatorics and counting;
- inequalities and clever algebra;
- writing complete solutions clearly.
A student can do well in AMC with strong intuition and good exam habits. AIMO usually needs more explicit training in olympiad methods.
A Practical Pathway
For a Year 7-8 student who is new to competitions, start with the AMC exam guide, use the AMC cheat sheet, then build a preparation routine that matches current confidence.
For a student who already scores highly in AMC or school extension maths, the AIMO guide is the better starting point, followed by a weekly routine of olympiad-style problems and solution writing.
- Read the AMC exam guide.
- Review the AMC cheat sheet.
- Move into AIMO when accuracy and reasoning depth are strong: AIMO exam guide.
FAQ
Is AIMO harder than AMC?
Yes. AIMO is usually harder because it requires deeper reasoning and written mathematical explanations. AMC is broader and more accessible, although its later questions can still be difficult.
Should my child do AMC before AIMO?
For most Years 7-8 students, yes. AMC gives a better first diagnostic. AIMO is more suitable once the student is comfortable with non-routine problems and can explain reasoning clearly.
Can AMC preparation help with AIMO?
Yes, but only partly. AMC builds flexible thinking and exam confidence. AIMO also needs proof-style writing, deeper number theory, combinatorics and geometry methods.
Which course should we choose?
Choose AMC Foundation if the student needs structure and confidence. Choose AMC Advanced if they already enjoy challenge problems. Choose AIMO if they are ready for longer olympiad-style work.
AIMO 2026: entries closed 4 September — the practical version of this comparison, with dates.
Where to go next
Choose by reasoning readiness and the kind of practice needed. Both paths are here.
- Already scoring Credit or Distinction
- Targeting HD and the hardest questions
- Already at AMC Distinction or HD
- Moving from competition maths into olympiad
- Knows the content, loses marks to timing
- Wants exam-day rehearsal
Should my child move from AMC to AIMO?
An AMC award alone is not a readiness test. Ask your child to work on an unfamiliar problem for longer, organise cases and write a clear explanation. AMT describes AIMO as pitched at Year 10, also of interest to motivated Years 7–9 students. Our preparation course is designed for Years 9–12; check fit rather than assuming the contest and course age ranges are identical.
Explore the full AIMO curriculum →
Course approach and suitability · Official AIMO entry information