Scientific American presentsMath Dudeby Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. In the last Math Dude episode, we learned the ins and outs of ...

When it’s not necessary to give an exact value, numbers can be rounded. Rounding means making a number simpler but keeping its value close to what it is. When rounding numbers the result is less ...

It’s so tempting to round off numbers and present your audience with pretty whole numbers rather than cluttering up the text with decimal points and a string of digits. Sometimes rounding a number up ...

The meme exploded into youth culture with a video of a boy who delivers a giddy “six seven” at a basketball game. CAM WILDER The name of this fall’s most obnoxious classmate: Six Seven. Math teacher ...

Numbers hide complex relationships that are tough to imagine. So here’s a pretty picture that brings them to light. The world belongs to the mathematicians and the physicists. We lay people may pump ...

Are odd numbers dominating our lives as Gregg Opelka writes in “The Odds Are Against Even Numbers” (op-ed, Dec. 26)? Well, we just enjoyed the 12 days of Christmas and will soon begin the election ...