mathleague.org news

New high school contest listing: 2025-11-10 in Sahuarita, AZ. See https://mathleague.org/hsevents.php for more details.

Here is our #elementaryschool #mathproblemoftheweek for September 30. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Geometry for Elementary Students #class Tuesdays, October 7 - November 4, 2025. Sign up for this class and learn concepts like area, perimeter, the Pythagorean Theorem, circles, angles, and even working in three dimensions. Visit https://mathleague.org/classes0.php for more details. #MathOnlineClass

Remember this PoTW released a few days ago? Check out our latest YouTube video to see how to solve it: https://www.youtube.com/watch?v=wtZbaW-RS5Q #mathproblemoftheweek #elementaryschool

Don't miss out & Register NOW at mathleague.org/nschallengeregister.php?challenge=126N2 . JOIN us on Thursday nights for an hour to compete in #NumberSenseChallenge 126N2 (October-December 2025). Track your progress on the leaderboard and compete for prizes! More info: mathleague.org/nschallenge.php .

Results from the 2025-09-28 relay challenge contest are now online at https://mathleague.org/relaychallengeresults.php

Here is our #highschool #mathproblemoftheweek for September 28. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Here is our #middleschool #mathproblemoftheweek for September 27. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Upcoming #mathleague contests for all students in grades 3rd-12th start in October 2025. Join our Qualifying Round contests season (In-person/Online/On-Demand). Visit https://mathleague.org for more information or contact customercare@mathleague.org if you want to host an in-person contest at your school.

New elementary school contest listing: 2025-10-18 in Plantation, FL. See https://mathleague.org/esevents.php for more details.

Until September 26, get 15% off all books at mathleague.org/books.php using promo code HARVEST15 at checkout. #mathleague #promocode

Here is our #elementaryschool #mathproblemoftheweek for September 23. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Join us on Thursday nights for an hour to compete in #NumberSenseChallenge 126N2 (October-December 2025). Track your progress on the leaderboard and compete for prizes! Register NOW at mathleague.org/nschallengeregister.php?challenge=126N2 . Info: mathleague.org/nschallenge.php .

New middle school contest listing: 2026-03-14 in St. Louis, MO. See https://mathleague.org/msevents.php for more details.

New elementary school contest listing: 2026-03-28 in Ballwin, MO. See https://mathleague.org/esevents.php for more details.

Remember this PoTW released a few days ago? Check out our latest YouTube video to see how to solve it: https://www.youtube.com/watch?v=td2AaEYfgzw #mathproblemoftheweek #elementaryschool

New middle school contest listing: 2025-10-11 in Plantation, FL. See https://mathleague.org/msevents.php for more details.

Results from the 2025-09-21 relay challenge contest are now online at https://mathleague.org/relaychallengeresults.php

Here is our #highschool #mathproblemoftheweek for September 21. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Remember this PoTW released a few days ago? Check out our latest YouTube video to see how to solve it: https://www.youtube.com/watch?v=zzs9oQ6WPmI #mathproblemoftheweek #highschool

Here is our #middleschool #mathproblemoftheweek for September 20. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Remember this PoTW released a few days ago? Check out our latest YouTube video to see how to solve it: https://www.youtube.com/watch?v=IOzZOgZR4y4 #mathproblemoftheweek #highschool

Problem Solving for Elementary Students #class Mondays, September 22 through October 20, 2025. This course is ideally suited for younger students just getting started in contest mathematics. Visit https://mathleague.org/classes0.php for more details and sign up for this class. #MathOnlineClass

Upcoming #mathleague contests for all students in grades 3rd-12th start in October 2025. Join our Qualifying Round contests season (In-person/Online/On-Demand). Visit https://mathleague.org for more information or contact customercare@mathleague.org if you want to host an in-person contest at your school.

Until September 19, get 15% off all books at mathleague.org/books.php using promo code LULUAUTHOR15 at checkout. #mathleague #promocode

Remember this PoTW released a few days ago? Check out our latest YouTube video to see how to solve it: https://www.youtube.com/watch?v=Ut2LE2AFtt0 #mathproblemoftheweek #middleschool

Register NOW at https://mathleague.org/nschallengeregister.php?challenge=126N2 and JOIN us on Thursday nights for an hour to compete in #NumberSenseChallenge 126N2 (October-December 2025). Track your progress on the leaderboard and compete for prizes! More info: https://mathleague.org/nschallenge.php . #mathleague #numbersense

New elementary school contest listing: 2025-11-01 in Cumming, GA. See https://mathleague.org/esevents.php for more details.

New middle school contest listing: 2025-11-01 in Cumming, GA. See https://mathleague.org/msevents.php for more details.

Here is our #elementaryschool #mathproblemoftheweek for September 16. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Remember this PoTW released a few days ago? Check out our latest YouTube video to see how to solve it: https://www.youtube.com/watch?v=KhMWALtQDpQ #mathproblemoftheweek #elementaryschool

When given a problem, what strategies do you use to attack it? We'll introduce techniques in the Problem Solving for Elementary Students #class Mondays, September 22 through October 20, 2025. Visit https://mathleague.org/classes0.php for more details and sign up for this class. #MathOnlineClass

Results from the 2025-09-14 relay challenge contest are now online at mathleague.org

Here is our #highschool #mathproblemoftheweek for September 14. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

Here is our #middleschool #mathproblemoftheweek for September 13. Please give the problem a try: submit your answer at https://bit.ly/mathleaguepotw , and you could win a prize! Check back in a few days to see a video explanation of this problem. #mathleague

New high school contest listing: 2025-10-18 in Peoria, AZ. See https://mathleague.org/hsevents.php for more details.

New middle school contest listing: 2025-11-15 in St. Louis, MO. See https://mathleague.org/msevents.php for more details.

Results from the 2025-09-11 number sense challenge contest are now online at mathleague.org

Join us on Thursday nights for an hour to compete in #NumberSenseChallenge 126N2 (October-December 2025). Track your progress on the leaderboard and compete for prizes! Register now at https://mathleague.org/nschallengeregister.php?challenge=126N2 . Info: https://mathleague.org/nschallenge.php .

New elementary school contest listing: 2026-02-28 in Rolla, MO. See https://mathleague.org/esevents.php for more details.

2025 US High School champion team Valley Christian School (Northern California)

New high school contest listing: 2025-10-31 in Nixa, MO. See https://mathleague.org/hsevents.php for more details.

New high school contest listing: 2026-02-16 in Missouri Local, MO. See https://mathleague.org/hsevents.php for more details.

New middle school contest listing: 2026-02-16 in Missouri Local, MO. See https://mathleague.org/msevents.php for more details.

New elementary school contest listing: 2026-02-16 in Missouri Local, MO. See https://mathleague.org/esevents.php for more details.

New elementary school contest listing: 2026-05-09 in Columbia, MO. See https://mathleague.org/esevents.php for more details.

New elementary school contest listing: 2025-10-18 in Tinian, MP. See https://mathleague.org/esevents.php for more details.

New high school contest listing: 2025-10-25 in Tinian, MP. See https://mathleague.org/hsevents.php for more details.

New middle school contest listing: 2025-10-18 in Tinian, MP. See https://mathleague.org/msevents.php for more details.

New middle school contest listing: 2025-10-11 in Tinian, MP. See https://mathleague.org/msevents.php for more details.

New high school contest listing: 2026-01-31 in Tinian, MP. See https://mathleague.org/hsevents.php for more details.

New elementary school contest listing: 2026-01-24 in Tinian, MP. See https://mathleague.org/esevents.php for more details.

New middle school contest listing: 2026-01-17 in Tinian, MP. See https://mathleague.org/msevents.php for more details.

New high school contest listing: 2026-10-25 in Tinian, MP. See https://mathleague.org/hsevents.php for more details.

New elementary school contest listing: 2026-10-18 in Tinian, MP. See https://mathleague.org/esevents.php for more details.

New middle school contest listing: 2026-10-11 in Tinian, MP. See https://mathleague.org/msevents.php for more details.

New elementary school contest listing: 2026-05-09 in Saipan, MP. See https://mathleague.org/esevents.php for more details.

New high school contest listing: 2026-04-18 in Saipan, MP. See https://mathleague.org/hsevents.php for more details.

New middle school contest listing: 2026-03-14 in Saipan, MP. See https://mathleague.org/msevents.php for more details.

New high school contest listing: 2026-01-31 in Saipan, MP. See https://mathleague.org/hsevents.php for more details.

New elementary school contest listing: 2026-01-24 in Saipan, MP. See https://mathleague.org/esevents.php for more details.

New middle school contest listing: 2026-01-17 in Saipan, MP. See https://mathleague.org/msevents.php for more details.

New high school contest listing: 2025-10-25 in Saipan, MP. See https://mathleague.org/hsevents.php for more details.

New elementary school contest listing: 2025-10-18 in Saipan, MP. See https://mathleague.org/esevents.php for more details.

New middle school contest listing: 2025-10-11 in Saipan, MP. See https://mathleague.org/msevents.php for more details.

New middle school contest listing: 2025-10-18 in Lake Mary, FL. See https://mathleague.org/msevents.php for more details.

New elementary school contest listing: 2025-10-18 in Lake Mary, FL. See https://mathleague.org/esevents.php for more details.

Have you been coming to our contests for a long time? Go to https://mathleague.org/cards to learn about our new Old Timer trading card and order one for yourself.

Results from the 2025-09-04 number sense challenge contest are now online at mathleague.org

New middle school contest listing: 2025-10-11 in Basking Ridge, NJ. See https://mathleague.org/msevents.php for more details.

New elementary school contest listing: 2025-10-11 in Basking Ridge, NJ. See https://mathleague.org/esevents.php for more details.