You probably haven’t had to do longhand math in years, but you do mental math every day. Or maybe you google math problems ten times a day, because you’ve forgotten how to do any math beyond your ...

There's a new Guinness World Record holder for how fast someone can do math. Aaryan Shukla — who has been dubbed "the human calculator" can solve complex problems in his head in seconds. OK, Ari, what ...