COMC (Grades 7-12) - Canadian Open Math Challenge - Ontario - 2021-2022

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Canadian Open Math Challenge by Canadian Mathematical Society

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Canadian Open Math Challenge

by Canadian Mathematical Society

Grades (7-12) $25


The Canadian Open Mathematics Challenge (COMC) is Canada's premier national mathematics competition that is open to any student with an interest in and grasp of high school math. The purpose of the COMC is to encourage students to explore, discover, and learn more about mathematics and problem solving. The competition serves to provide teachers with a unique student enrichment activity during the fall term. Approximately the top 50 students from the COMC will be invited to write the Canadian Mathematical Olympiad (CMO). Students who excel in the CMO will have the opportunity to be selected as part of Math Team Canada - a small team of students who travel to compete in the International Mathematical Olympiad (IMO). Depending on grade level and performance, students participating in the COMC can also have opportunities to garner awards, to win prizes, to be considered for scholarships, and to get invited to camps. The contest is scheduled on Thursday October 28 from 9am – 11:30am. Registration costs CAD$25.00 per student in Canada. The contestants will require to miss part of the school day.


Can my child write this contest with Spirit of Math if they are not a current Spirit of Math student?

No, only Spirit of Math students are eligible to write at our location.

My child's day school also offer this contest, who should I register with? 

You have to register with your school. 

 I don't yet know whether my child's day school offers this contest or not. Can I register now and ask for a refund later if his/her day school does offer?

Unfortunately, the registration fee is non-refundable. However, your child may only write the contest ONCE. 

 Can I sign my child up for contests that are above their current grade school grade level?

Yes. However, you cannot sign up for lower grade contests.

 Are calculators permitted?

Mobile phones and calculators are NOT allowed in the contest.

 Where can I get more information about this contest?

 How should my child prepare for this contest?

You are encouraged to visit for the previous contests. 


The CMS also posts a sample practice problem each week, started the first week of September. Solutions are posted the following week when the next problem is posted. Please visit:


If you have any problem with the sample questions, you should ask your teachers for advice.  


Who can I contact if I have any questions?

Please contact the Campus Director at your campus if you have questions.

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Organizer Spirit of Math Schools Inc.

Organizer of COMC (Grades 7-12) - Canadian Open Math Challenge - Ontario - 2021-2022

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