Nobody expects a short about arithmetic and mosquitos to be genuinely charming, but this one is. Five people trying to solve a mosquito problem becomes a perfect excuse to watch math happen in real time, without lectures or condescension. It's the kind of thing that makes you smile at a concept you thought was boring, then actually remember how subtraction works for the first time since third grade.

A humorous short film that turns a lesson in arithmetic into comedy. Its counting exercise is built around two groups: five people and twelve mosquitoes. The numbers in the title are the material the lesson works with, and the laughs come from putting simple math to use through these unlikely figures.