Hosted by Canadian Mathematical Society (CMS) - one of the world’s leading authorities in math

High interest and building students’ problem-solving skills

Problems with an increasing level of difficulty

over 55% winning rate

Bilingual exam

Date: Nov. 21, 2025 (Fri.) 17:00-18:30 (90 mins)

Introduction

Canada Jay Mathematical Competition (CJMC) is a new Canadian math challenge for students in grades 5-8. This challenge has been created by mathematicians from across Canada. The problems are meant to be a fun fall activity for students and teachers to complement their math curriculum and build students’ problem-solving skills. The CMGC will offer engaging problems that will allow for discussion after the competition and get students excited about math.

Official website：https://cms.math.ca/canadian-mathematical-gray-jay-competition-cmgc/

Introduction

 
Promotion

Rules

Language

English & Chinese

Date

Nov. 21, 2025 (Fri.) 17:00-18:30 (90 mins)

Format

Individual test

Participants

Grade 5-8

Topics

Probability, Geometry and Symmetry, Exponents and Order of Operations, Algebra Sequences and series, Patterns, Simple counting problems, Elementary number theory (primes, composites, greatest common factor, least common multiple), Ratio, Rate and Percent, Data Analysis (interpreting bar and pie graphs), Integers and Fractions

Types of Problems

3 sections, each with 5 multiple choice questions. The difficulty increases with question number.

Questions you answer incorrectly get zero points. Questions you leave blank get one point. The full score is 80 points.

  • 5 points each question in section A
  • 5 points each question in section B
  • 6 points each question in section C

Location

Paper-based in partnering school (online service application accepted)

Awards

Global Awards (Based on the total participants)

  • Gold Award - International
  • Silver Award - International
  • Bronze Award - International
  • Honourable Mention - International

Global Awards (based on the specific grade)

  • Gold Award - International Grade X
  • Silver Award - International Grade X
  • Bronze Award - International Grade X
  • Honour Mention - International Grade X
  • Performance with Distinction
  • Performance with Honours

Registration Details

Fee

Including the exam, grading, proctor fee, past-papers, certificates, offline reference materials/one-time online mock test, etc.

Deadline

Nov. 11, 2025

FAQ

1、Can the students bring a calculator?
Calculators can not be used on any round for CMGC.
2、Refund policy
If, for some reason, the student is unable to attend after paying the fee, please contact us. If you apply before the registration deadline, 25% of the registration fee will be deducted as academic materials and service fees. If you apply after the registration deadline, no refund will be given.
3、 How to claim ASDAN student number?

Click here to view the claim

Northern Contact
Northern Region：
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Eastern China Contact
Eastern Region：
Shanghai、Zhejiang、Jiangsu
Central China Contact
Central Region：
Henan
Southern China Contact
Southern Region：
Guangdong、Guangxi、Fujian、Hainan、Hongkong、Macao、Taiwan
Western China Contact
Western Region：
Chongqing、Sichuan、Yunnan、Guizhou、Shaanxi、Gansu、Qinghai、Tibet、Ningxia、Xinjiang
Central China Contact
Central Region：
Hunan、Hubei、Anhui、Jiangxi