AIMO
When: 17:00-21:00(NZ Time). Thursday 11 September 2025
Entry closing date: Saturday 30 August 2025
Exam Duration: 4 hours
Eligible Year Group: NZ Year 8-11
Exam Format: Offline proctored paper-based exam
Competition Location: Unit T/301 Botany Road, Auckland.
What is AIMO
AIMO (Australian Intermediate Mathematics Olympiad) is designed to challenge talented students in New Zealand from Year 8 to Year 11. It is particularly suited for：
· high achievers in the Australian Mathematics Competition (AMC)
· have acquired knowledge in Olympiad problem solving.
This competition serves as a gateway to exclusive invitation-only events, including mathematics competitions, enrichment classes, and training schools.
The AIMO gives talented students an opportunity to be recognised and to participate in activities which will enhance their enjoyment and knowledge of mathematics.
AIMO format
The AIMO is a 4-hour competition including 10 questions:
•Questions 1 to 8 require integer answers from 0 to 999.
•Questions 9 to 10 require written answers with proofs.
•There is an additional investigation which may be used to determine prize winners.
Students should submit working for Questions 1 to 8. Partial marks may be awarded if an answer is incorrect but
working is provided.
The fee for entering AIMO: $100 per student
BANK: ANZ
Name of Account: Pinnacle Education Group
Account: 06-0241-0684634-00
Please make payment with the students 'full name + AIMO ' as reference.
⚠️ Please note that any fees and payments made are non-refundable.
⚠️ Before you make any payment, read through the refund policy on our website to avoid misunderstandings.
(Terms and conditions apply).
Please note: If you registered after the deadline (30 Aug), the fees will be doubled.
PGA reserves the right to interpret all competition and course arrangements.
Register Now!
Now open for registration until 30 Aug 2025
Fees for AIMO: $100 per student;
Fees for training course: ask us for pricing
Registration process:
1. Make the payment, and save a screenshot as proof.
2. Complete the registration form below.
Please make sure to enter a correct email address.
Use a different email for each student.
3. Check your email regularly.
Important exam updates will be sent via email.
4. Look out for the Exam Instructions
Exam Instructions will be emailed to you 3–7 days before the exam date.
Student Instructions
You will need:
•A pen, ruler and compass;
•Four AIMO Answer Sheets (A, B, C and D) provided by your teacher;
•10 to 15 sheets of loose paper (A4 printer paper preferred) provided by your teacher;
•Calculators, electronic devices, books and other aids are NOT permitted.
Please take time to read and familiarise yourself with the four Answer Sheets (A, B, C and D) you have been provided.
•Answer Sheet A includes student instructions and a page tally to help you order and collate your work before submission.
•Answer sheets include unique QR codes and cannot be photocopied.
•Write in blue or black pen on one side of the paper.
•Write your name and the question number on all additional loose pages.
•Use a separate piece of paper for each question.
•Attempt Questions 1–10 before trying the Investigation.
•Complete the page tally and check your pages are in the correct order (Answer Sheet A followed by
Questions 1–8 of loose pages, Answer Sheet B followed by Question 9 loose pages).
•Hand the competition paper back to the supervisor.
AIMO Topics
May include:
• Parallels
• Similarity
• Pythagoras’ theorem
• Diophantine equations
• Counting techniques
• Expansion and factorisation
• Inequalities
• Sequences and series
• Number bases
• Methods of proof
• Congruences
• Circles and tangents
• Probability
AIMO Scoring
Questions 1–4: 2 marks
Question 5: 3 marks
Question 6: 4 marks
Questions 7–10: 5 marks
Investigation: 4 bonus marks
Total 35 marks
AIMO Award
High Distinction: top 10%.
Distinction: next 15%.
Credit: next 25%.
All other students receive Participation certificates.
Cut-off scores: vary year by year depending on the difficulty of the competition and the number of participants.
