List

CMO Problems and Solutions

Canada's national olympiad, first held in 1969 and written by invitation of the Canadian Mathematical Society. It is a three-hour paper, sat each March, and its top students are short-listed for Canada's IMO team. The Canadian Junior Mathematical Olympiad, for students up to grade ten, is written at the same time, and some problems appear in both.

2026

Canada

CMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
CJMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2025

Canada

CMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
CJMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2024

Canada

CMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
CJMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2023

Canada

CMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
CJMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2022

Canada

CMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
CJMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2021

Canada

CMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
CJMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2020

Canada

CMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
CJMO
Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2019

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2018

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2017

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2016

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2015

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2014

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2013

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2012

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2011

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2010

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2009

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2008

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2007

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2006

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2005

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2004

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2003

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2002

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2001

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

2000

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1999

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1998

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1997

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1996

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1995

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1994

Canada

Problems5 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1993

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1992

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1991

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1990

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1989

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1988

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1987

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1986

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1985

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1984

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1983

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1982

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1981

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1980

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1979

Canada

Problems5 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published

1978

Canada

Problems6 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published

1977

Canada

Problems7 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published

1976

Canada

Problems8 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published
  • 8Problem 8not published

1975

Canada

Problems8 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published
  • 8Problem 8not published

1974

Canada

Problems7 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published

1973

Canada

Problems7 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published

1972

Canada

Problems10 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published
  • 8Problem 8not published
  • 9Problem 9not published
  • 10Problem 10not published

1971

Canada

Problems10 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published
  • 8Problem 8not published
  • 9Problem 9not published
  • 10Problem 10not published

1970

Canada

Problems10 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published
  • 8Problem 8not published
  • 9Problem 9not published
  • 10Problem 10not published

1969

Canada

Problems10 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
  • 5Problem 5not published
  • 6Problem 6not published
  • 7Problem 7not published
  • 8Problem 8not published
  • 9Problem 9not published
  • 10Problem 10not published