Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

Calculators are awesome, but they’re not always handy. More to the point, no one wants to be seen reaching for the calculator on their mobile phone when it’s time to figure out a 15 percent gratuity.

“Veda” is a Sanskrit term that conveys the meaning of “Knowledge” in English. It simplifies complex calculations and helps solve them faster and more accurately. Vedic Maths tricks offer a powerful ...