International Mathematical Olympiad (IMO)
The International Mathematical Olympiad (IMO) is the world's most prestigious mathematics competition for high school students, held annually since 1959. Competitors solve six proof-based problems over two days covering algebra, number theory, combinatorics, and geometry, with each problem worth up to 7 points for a maximum score of 42.
40
Questions
120 min
Time Limit
70%
To Pass
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Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds