The iPhone calculator is great for crunching numbers in a pinch, but you can also use it to have some fun with your friends and family. Here are some cool calculator tricks you can use to find someone ...

Maggi Ajjayya, Kottur’s “Computer Man,” amazes social media with lightning-fast mental math. Despite only studying till 8th grade and surviving by begging, his calculation tricks have gone viral.

Michelle Chin is an Austin-based influencer known as the "human calculator," and on Dec. 14, she'll teach a free online class called "Math Magic." The room was silent except for the scribbling of ...

Train your brain to perform incredible mathematical feats almost effortlessly with these amazing maths tricks that will make your friends think you're a ...