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Mike Byster is one of the world’s fastest mental math minds. He solves complex math equations in his head—even faster than a calculator. A former commodities trader turned educator, he has empowered ...

Ever dreamt of solving math problems in your head with the speed of a calculator? Mental math might seem challenging, but it's a skill attainable through the right tools and techniques. The abacus, an ...

Struggling with mental math? Students from class 6 to 10 now have a clever way to simplify tricky multiplication problems. The “doubling square” method turns large or complex calculations into quick, ...

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 ...