The next time your teacher wants you to compute a number, impress your classmates by doing the computations in your head- use mental math! There are several rules, tricks, and strategies to make what seems like complicated mathematical computations incredibly simple. We’ll cover many mental math tricks in future article posts, but let’s start off with a straightforward mental math rule you can begin using immediately.
There’s a simple rule for multiplying numbers by 11. Learn it quickly now and be on your way to mental math mastery.