Math competitions that allow mixed teams?

<p>Are there any team-based math competitions that you guys know of that allow competitors to work in teams composed of students from different high schools? The only ones I know of require that I team up with students from my own high school, but I would like to do competitions where I partner up with people from other high schools.</p>

<p>Thanks.</p>

<p>ARML</p>

<p><a href=“http://www.arml.com/arml_2014/page/index.php?page_type=public&page=home[/url]”>http://www.arml.com/arml_2014/page/index.php?page_type=public&page=home&lt;/a&gt;&lt;/p&gt;

<p><a href=“http://en.wikipedia.org/wiki/American_Regions_Mathematics_League[/url]”>http://en.wikipedia.org/wiki/American_Regions_Mathematics_League&lt;/a&gt;&lt;/p&gt;

<p><a href=“http://www.artofproblemsolving.com/Wiki/index.php/American_Regions_Mathematics_League[/url]”>http://www.artofproblemsolving.com/Wiki/index.php/American_Regions_Mathematics_League&lt;/a&gt;&lt;/p&gt;

<p>HMMT</p>

<p><a href=“http://en.wikipedia.org/wiki/American_Regions_Mathematics_League[/url]”>http://en.wikipedia.org/wiki/American_Regions_Mathematics_League&lt;/a&gt;&lt;/p&gt;

<p>I’m pretty sure most university-run competitions such as CHMMC and PUMaC (as well as HMMT) allow mixed teams.</p>

<p>Corrected HMMT link:</p>

<p><a href=“http://hmmt.mit.edu/[/url]”>http://hmmt.mit.edu/&lt;/a&gt;&lt;/p&gt;

<p>Also: SMT</p>

<p><a href=“https://sumo.stanford.edu/smt/[/url]”>https://sumo.stanford.edu/smt/&lt;/a&gt;&lt;/p&gt;

<p>Haha. I wouldn’t trust anyone at my school with math. </p>