This is the authoritative version of the rules for the 2020 LMT Spring Online competition. The entire rules section has recently been updated to reflect the current status of the competition. Please note that LMT is not typically an online competition and that our archive reflects the usual format of the competition, which involves multiple rounds, rather than this spring's LMT Spring Online competition, which only has one round.

Prize Update

Top-performing teams will choose from prizes including certificates from the Art of Problem Solving and tutoring sessions from Lexington Math Team alumnus Nathan Ramesh. More information on Nathan is provided below.

Nathan was a captain of the Lexington Math Team from 2017-2019, a former director of the Lexington Math Tournament, and a current freshman at MIT, where he studies EECS and mathematics. He was a participant in the MATHCOUNTS 2015 National Countdown Round, a two-time USAJMO winner (2015, 2016), a two-time MOP attendee (2016, 2017), and AIME perfect scorer (2019). In 2017, Nathan placed second nationally at ARML, and first at ARML's Penn State location. Nathan is currently an active tutor for competitions ranging from Mathcounts to the USAMO. Individuals from top-performing teams on this year's LMT will be offered a free tutoring session among other prizes. For more information, and for tutoring related inquiries, Nathan can be reached at


The competition is targeted towards 6th, 7th and 8th grade students, although younger students may also compete.

Teams may contain up to six members, and must have at least one member. It should be emphasized that this is a team contest, and that individuals will be treated as teams of size one. Registering teams across different schools is allowed, and encouraged. With the exception of team members from the same household, teams are expected to collaborate remotely. Please respect local social distancing guidelines and do not meet in person to work on LMT!

Teams must designate one member as captain. The captain is in charge of registering their team.

Test Information

The competition consists of a single round, consisting of 30 short answer problems to which all answers are nonnegative integers. The problems will be made available on the homepage of the LMT website on Saturday, May 9th, at 12:00 pm ET. Teams will have until Friday, May 15th, at 3:00 pm ET to submit their answers using the link provided by email.

You may have noticed that past years' competitions have included multiple rounds, whereas this spring's competition only has a single team round. As stated previously, the LMT has, in going online this spring, temporarily adopted the more streamlined competition format described above.

For instructions on submitting answers, see the Submitting Answers and Editing Team Information section below.

With the exception of standard four-function calculators, computational aids including but not limited to scientific and graphing calculators, computer programs, and software such as Geogebra, Mathematica, and WolframAlpha, are not allowed. Communication of any form between students on different teams is similarly prohibited, and any team caught either giving or receiving an unfair advantage over other competitors will be disqualified. What constitutes cheating will be up to the final discretion of the competition organizers, who reserve the right to disqualify any team suspected of violating these rules.

Submitting Answers and Editing Team Information

During registration, your captain will be emailed a link to your team’s homepage. This is where you will be able to update team information and answer submissions. We recommend that your captain distribute this link to the rest of the team so that the entire team has access.

Once on your team’s homepage, to enter or edit team answers, click the link next to “Submission Link: “. Team name, team member names, and grades may be edited through the homepage as well. Remember, team member names must be the real names of the people on your team, and the team name must be appropriate.


If you believe there to be an error in one of the questions, email us at Clarifications for problems will be posted on the LMT homepage should they be necessary.


The score of your team is the number of questions you answer correctly. Results will be posted shortly after the competition, where the top teams will be recognized. Ties will be broken by comparing z-score.