MathCounts is a multi-level U.S. competition with live, interactive rounds like the Countdown round, distinguishing it from purely test-based contests.
AMC is primarily a single test that serves as a gateway to more advanced, invitation-only math competitions, like AIME and USAMO.
MOEMS is unique for its monthly contest structure, providing students with ongoing, recurring opportunities to solve problems throughout the academic year.
Math Kangaroo stands out as an international competition with a wide age range and a flexible online at-home option, making it more accessible to a global audience.
| Feature | MathCounts | AMC | MOEMS | Math Kangaroo |
|---|---|---|---|---|
| Target Audience | U.S. middle school students (grades 6-8) | Middle school (AMC 8) and high school (AMC 10/12) students | Elementary (grades 4-6) and middle school (grades 6-8) students | International, students grades 1-12 |
| Competition Format | Multiple rounds (Sprint, Target, Team, Countdown) | Timed, multiple-choice test | Five monthly contests, 5 questions; 30 minutes each | Single 75-minute, multiple-choice test |
| Students per Team/School | 1–15 students per team; NSCs possible | Varies; through schools/centers | Up to 35 students per team | Varies; schools, centers, or at home |
| Timeline | Registration fall; competitions Feb–May | AMC 8 Jan; AMC 10/12 Nov | Five monthly contests Nov–Mar | Registration Sep–Feb; contest in Mar |
| Key Distinguishing Feature | Multi-stage, team-based U.S. competition | First step toward USA Math Olympiad | Ongoing monthly problem-solving practice | Single-round, international, flexible format |