If you're down to learn something cool and quick this early in the year, a multiplication "trick" attributed to the Japanese may be your best bet. The graphic method, which makes use of sticks and ...

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 ...

Back in primary school when we were learning how to multiply two, multi-digit numbers by hand, our teacher showed us a little trick to verify that we had the correct result calculated. I was impressed ...

Here’s what you’ll learn when you read this story: Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number ...