Add Yahoo as a preferred source to see more of our stories on Google. Basic addition is pretty easy, right? Wrong. A math problem going viral on TikTok right now seems easy to figure out, but it has ...

An apparently easy-looking math problem has left internet users scratching their heads. The elementary-grade problem looks simple enough to solve in seconds, but has tripped up the masses. The basic ...

The International Mathematical Olympiad (IMO) is a prestigious competition featuring talented high school students from around the world, in which competitors solve complicated mathematical problems.