Note: Year 28 consists of three rounds of five problems each.Click to download the Round 3 problems
Web deadline: 8 PM Eastern / 5 PM Pacific on the due date
Mail deadline: Postmarked on or before the due date
Remember to fully justify all your answers - don't just send numerical answers.
Read the complete rules to learn more about how to submit your solutions.
Past rounds and solutions:
You can also check out past years' USAMTS problems.