• alcoholicorn
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    6 hours ago

    There’s peoplealiens who would add 9+7 instead of 10+6 or 8+8 in their heads?

    • Albbi@lemmy.ca
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      5 hours ago

      I do, because 9 plus anything is just a 1 in front of the other digit minus 1.

      Weirdly enough, I just thought about using the methods here for the first time in my life earlier today. Weird.