University of Houston math contests

[telemachos]

Held each year, intended for high school students, they include calculator exams.

These HP calculators are now permitted (early on, only TI calculators were permitted):

HP-9G
HP-28 series
HP-38G
HP-39 series
HP-40 series
HP-48 series
HP-49 series
HP-50 series

Exams going back to 2008 can be downloaded from here:

<http://mathcontest.uh.edu/>

Forum members may find this trove of problems amusing, trivial, or (in some cases) worthwhile education in the use of their HP calculator. (Not surprisingly, the HP-50 has some distinct advantages over the other permitted models.)