• @Thorry84@feddit.nl
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    7116 days ago

    I don’t think this has anything to do with ADHD, it’s just a little shortcut you can use when doing math in your head. I was taught techniques like this in school when we learnt addition and subtraction etc.

    • magic_lobster_party
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      1816 days ago

      It’s also a good way to double check your answers. If you can reach to the same conclusion through different processes, then it’s probably the right answer.

  • @drperil@lemm.ee
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    2515 days ago

    Is this not just how people do simple math? Why the hell else did they make us just memorize multiplication tables?

    • @funkless_eck@sh.itjust.works
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      215 days ago

      three of the six falls into the gap between the 7 and 10, leaving 3 sticking out the top = 13.

      I have no idea if this is normal or not

    • @froh42@lemmy.world
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      14 days ago

      In elementary school my son would not memorize addition and multiplication and just use strategies like this.

      That became a problem later on as we just can handle a finite number of intermediary results in our brain, so just memorizing the tables reduces a lot of mental load for calculation in your brain.

      Another thing that helped him a lot was just writing down intermediaries on a piece of paper.

      Btw it was a bit similar for me, I just got the table memorized perfectly and got faster doing simple calculations in my mind than using a calculator when I was training the multiplication and addition tables with my son.

  • @Archangel1313@lemmy.ca
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    1816 days ago

    This is just what’s called the “common core method”. It’s now the preferred method of teaching math in many Western countries.

    • @gandalf_der_12te@discuss.tchncs.de
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      215 days ago

      idiology! they’re indoctrinating our children with this woke bullshit now. they’re trying to make us see the “common core” in things. What’s next, they’re gonna tell us that mexicans are people too?

  • @Agent641@lemmy.world
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    1115 days ago

    I would actually step to 10 first by going (7+3)+(6-3)

    Steal some from the 6 to make the 7 round up to 10, then ad the remainder to 10.

    • Maki
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      115 days ago

      Get out of my head, lol. I do this as well.

  • Dyskolos
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    1116 days ago

    ADHD? I thought I was just as dumb as some mid-sized pebble.

  • @Nangijala@feddit.dk
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    16 days ago

    The way I do it:

    6+6 = 12 +1 = 13

    Dunno how relevant calculating is to ADHD, but it is fun to see how people calculate things in their heads in different ways.

    • RejZoR
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      16 days ago

      Same. I optimize numbers to nicer rounder values and then add on those. 7+6=7+3 to make nice round 10 and then add whatever remains to that, so 10+3=13. I don’t know why, it just makes sense.