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A fake Facebook event disguised as a math problem has been one of its top posts for 6 months
(www.engadget.com)
This is a most excellent place for technology news and articles.
÷ could be a minus sign, see: https://en.wikipedia.org/wiki/Division_sign?wprov=sfla1
÷ could be a minus sign
No it couldn't.
Did you check the reference? It says % can be used as a minus sign, not the obelus. Welcome to what happens when you're next-door neighbour Joe Blow can edit Wikipedia.