Here’s how to deal with those badly written equations you find online
 

Spend enough time on social media and it’s likely that you’ll see what I’ve started to call a Bad Math Scam. This is where an account, looking to juice their engagement figures, posts an equation with a challenge for people to solve it. Often, it’ll say something like “Only ‘80s Kids Can Do This” or “Brain Power Challenge: Can You Do This Without a Calculator?”. The only problem is that the equation is so ambiguously-written that you can come up with multiple answers.

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