REDWOOD CITY, Calif. (KGO) -- In case you didn't know it, Monday is Square Root Day. It's 4-4-16. As you'll take note, both the day and month are the square root of the last two digits of the year.

Mastering quick square root calculations boosts maths exam performance. Speed and accuracy provide a significant advantage in algebra and geometry. Memorising key square roots and using mental math ...