Canadian Mathematical Society
Canadian Mathematical Society


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2015 Sun Life Financial Canadian Open Math Challenge -- Nov 5/6

2015 Sun Life Financial Canadian Open Math Challenge — Nov 5/6

The Sun Life Financial 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 Sun Life Financial 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 Sun Life Financial 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.

Teachers: we have posters you can download and print to encourage participation! We also have brochures you can use. See our Tell Your Students page.

Returning for 2015: Teacher Appreciation Prizes


The 2015 COMC will be held on Thursday, November 5th in Canada and the Americas (anywhere in North/South American time zones), and on Friday, November 6th elsewhere in the world.


Teachers can register their schools for the COMC by clicking the link below. Registration costs CAD$12.50 per student in Canada and USD$15 per student for international participants.

Problem of the Week!

During the weeks prior to the COMC competition, the CMS is happy to present our Problem of the Week (POTW). Please visit our POTW page for past problems and solutions. Here is the latest problem:

Time for some more geometry.

Let $ABC$ be a right-angled triangle with the right angle at $C$. Let $BCDE$ and $ACFG$ be squares external to the triangle. Furthermore, let $AE$ intersect $BC$ at $H$, and let $BG$ intersect $AC$ at $K$. Find the size of $\angle DKH$.

Stay informed!

Subscribe to the free Canada Math Competitions e-mail list.

Provides announcements and information from the CMS related to the COMC, CMO, IMO, and other student math competitions.

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