Every year, the countries competing in the International Mathematical Olympiad arrive with a booklet of their best, most original problems. Those booklets get shared among delegations, then quietly ...

Add Yahoo as a preferred source to see more of our stories on Google. We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple ...

Have you ever wondered whether mathletes can go pro? Since 1959, the answer has been “yes” – with the height of achievement and prestige being at the International Mathematical Olympiad (IMO). Every ...