Can you recall any one math concept that you felt the most confident about, but felt weak in the knees just with the glance of the question? Come on, give it a thought! Well, for most people, it's the ...

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. Long time math fans may remember our first foray into the world ...

Matheminecraft puts players in a classic math puzzle called an Eulerian cycle, which you’ve almost definitely tried before. Can you draw a star without crossing your own line or lifting your pen? This ...

Excel percentage formulas can get you through problems large and small every day—from determining sales tax (and tips) to calculating increases and decreases. We’ll walk through several examples below ...

Fast Percentage calculations in mind using Mental Maths: Calculate almost any percentage in your mind. Simple tricks to calculate percentages like 10%, 20%, 75% and more mentally. This is useful for ...

How to calculate percentages is easier than you think. Quick, what’s 36% of 25? Or how about 250% of 20? Learn a quick and dirty tip to help you calculate all of those pesky percentages in your head.