Kid Math Resources

1. AOPS (6-12): https://artofproblemsolving.com/store
   • Recommendation https://artofproblemsolving.com/school/recommendations
   • Alcumus题库 https://artofproblemsolving.com/alcumus
   • 各国题库 https://artofproblemsolving.com/community/c13_contests
2. HMMT (9-12): https://www.hmmt.org
   HMMT is an annual math tournament for high school students, held at MIT and at Harvard in alternating years. It is run exclusively by MIT and Harvard students, most of whom themselves participated in math contests in high school.
3. MathCounts (6-8): https://www.mathcounts.org
   MathCounts is the premier contest for U.S. middle school students. MATHCOUNTSisa na- tional enrichment, coaching, and competition program that promotes middle school mathematics achievement through grassroots involvement in every U.S. state and territory. President George W. Bush and former Presidents Clinton, Bush and Reagan have all recognized MATHCOUNTS in White House ceremonies. The MATHCOUNTS program has also received two White House citations as an outstanding private sector initiative. Particularly exciting for MATHCOUNTS Mathletes® were the hour long ESPN programs on each of the past three National Competitions.
   
   MathCounts has past-year competition free to download in http://mathcounts.org/resources/past-competitions. For earlier competitions, you can google “mathcounts xxxx pdf” to find the official download links.
4. AMC: https://www.maa.org/math-competitions
   AMC is a series of contests for U.S. middle and high school students. TheAMC 8, AMC 10, and AMC 12 contestsare multiple-choice tests whichare taken by over 400,000 students every year. Top scorers on the AMC 10 and AMC 12 are invited to take the American Invitational Mathematics Examination (AIME), which is amore difficult, short-answer contest. Approximately 10,000 students every year participate in the AIME. Then, based on the results of the AMC and AIME contests, about 250 students are invited to participate in the USA Mathematical Olympiad (USAMO), a 2-day, 9-hour examination in which each student must show all of his or her work. Results from the USAMOare used to invite a number of students to the Math Olympiad Summer Program, at which the U.S. team for the International Mathematical Olympiad (IMO) ischosen.
   • Resources: https://www.maa.org/math-competitions/amc-resources
   • AMC8: https://www.maa.org/math-competitions/amc-8
   • AMC 10/12: https://www.maa.org/math-competitions/amc-1012
5. RSM: https://www.mathschool.com
6. USA Mathematical Talent Search (USAMTS): https://www.usamts.org
   USAMTS was founded in 1989 by Professor George Berzsenyi. The USAMTS is a free mathematics competition open to all United States middle and high school students. As opposed to most mathematics competitions, the USAMTS allows students a full month to work out their solutions. Carefully written justifications are required for each problem.
7. American Regions Math League (ARML): https://www.arml.com/
   ARML was founded in 1976. The annual ARML competition brings together nearly 2,000 of the nation’s finest students. They meet, compete against, and socialize with one another, forming friendships and sharpening their mathematical skills. The contest is written for high school students, although some exceptional junior high students attend each year. The competition consists of several events, which include a team round, a power question (in which a team solves proof-oriented questions), an individual round, and two relay rounds.
8. MOMES https://moems.org G4-8
9. Math Kangaroo:
   • G1-G12
   • Pass test: https://www.matematica.pt/en/useful/kangaroo-questions.php