• Ashenlux@lemmy.blahaj.zone
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    17 days ago

    Why wouldn’t you just take 1 from 7, add it to 9, and make it 10 + 6? That makes a lot more sense to my brain at least.

    • Natanox@discuss.tchncs.de
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      17 days ago

      Because making shit equal, be in perfect balance or even symmetric makes my dopamine go 🥳.

      Finding the correct answer that way is a neat side effect too.

      • xorollo@leminal.space
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        17 days ago

        Multiplying by two is a similar cognitive exercise to adding 10 in small numbers (for me) so it would really depend on which occured to me first.

    • groet@feddit.org
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      17 days ago

      Because that is the joke and why the teacher reacted that way.

      Or translated into reddit: woosh