OK, Ari, what is 567 times 123? And you have exactly three seconds to answer, so you better move fast. SHAPIRO: You can't be serious right now, Juana. SUMMERS: (Laughter). SHAPIRO: There's no way ...

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 ...

If I asked you to multiply 51,689 by 89,542 without using your phone or calculator, how much time would it take you? Fourteen-year-old Aaryan Shukla can solve this arithmetic in a matter of ...

Panidapu executes complex problems with mental math using the abacus method of calculation, a technique that relies on an ancient tool.

A little stress can motivate, but teachers increasingly report their students’ fears over math interfere with their learning. In a nationally representative survey conducted this spring, nearly all ...