Let's take a walk down memory lane - straight to geometry class (sorry). A Twitter user posted a photo of a mind-boggling triangle brain teaser, and people are now questioning their basic math skills.

Counting will get you nowhere. Try a little combinatorics instead. By Kenneth Chang A couple of weeks ago, I wrote about a viral math problem — 8÷2(2+2) = ? — that drew the disdain of many ...

Oh, sorry! Did we greet you the wrong way? Well if so, then you are going to enjoy these math riddles even more today. When it comes to math, not everyone smiles. Not everyone raised their hands in ...

Well, what is the best way to cut a sandwich in half? Surely triangles don't really have "more sandwich," right? That's geometry and the law of conservation of matter. But something about the ...

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Introduction Do you ever use math as a tool to solve interesting problems? In the 1970s math was often taught with simple worksheets. One teacher was looking for a way to help his students have more ...