This math trick can help you multiply any two-digit number by 11. Arlene Resendiz is TikTok’s resident math whiz. When she’s not working as a professional tutor, she’s teaching the internet the ...

(This is the final post in a three-part series. You can see Part One here and Part Two here.) In Part Two, Sunil Singh, Laney Sammons, Abby Shink, Cathy Seeley, and Shannon Jones shared their thoughts ...

You probably haven’t had to do longhand math in years, but you do mental math every day. Or maybe you google math problems ten times a day, because you’ve forgotten how to do any math beyond your ...

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Just when you begin to question the merit of all those years you spent studying math in school, something pops onto the scene to give you a newfound respect for the subject — a math trick that reveals ...

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