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submitted 10 months ago by Stamets@lemmy.world to c/adhd@lemmy.dbzer0.com
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[-] PotatoesFall@discuss.tchncs.de 160 points 10 months ago

Can we stop making every little thing about ADHD? This is just a common way to do arithmetic

[-] Stabbitha@lemmy.world 83 points 10 months ago

Normal people: breathing

Me: breathing in ADHD

[-] Feathercrown@lemmy.world 8 points 10 months ago

ADHD people when someone with AD4K walks in:

[-] truxnell@aussie.zone 12 points 10 months ago

Came to the comments for this, always done it this way!

[-] BuboScandiacus@mander.xyz 6 points 10 months ago

Yeah, kinda annoying

Btw this might break rule 1, sincerely idk

[-] plyth@feddit.org 3 points 10 months ago

Adding up to 10, like the other comment explains, is the common way. Using 14 as intermediate step suggests a different way of thinking. OP could be on to something if that's normal to you.

7 + 6 = 10 + 3 = 13

[-] PotatoesFall@discuss.tchncs.de 15 points 10 months ago

Some people have 7+6 = 13 memorized.

Some do 1+6+6 = 1+12 = 13.

Some use offsets from 5, like 5+1+5+2 = 2*5 + 3 = 13

Hell I'm sure somebody did it like 10 - 4 + 10 - 3 = 20 - 7 = 10 + 10 - 7 = 10 + 3 = 13

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[-] AWistfulNihilist@lemmy.world 3 points 10 months ago* (last edited 10 months ago)

I don't think OP has a relevant experience, and it shows with these dumb memes.

https://lemmy.world/pictrs/image/409c3405-6ceb-4c83-b4aa-fec8fe4bf3bf.jpeg

This is the exact opposite experience I've heard from 90% of my adhd peeps. Cosplay shit.

[-] Thorry84@feddit.nl 70 points 10 months 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@fedia.io 19 points 10 months 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.

[-] the_riviera_kid@lemmy.world 56 points 10 months ago

This has nothing to do with ADHD.

[-] GolfNovemberUniform@infosec.pub 56 points 10 months ago

Uhm aren't all people counting like that?

[-] Oisteink@feddit.nl 28 points 10 months ago
[-] GolfNovemberUniform@infosec.pub 2 points 10 months ago

Well I suppose some might count by adding 1s or 2s but that looks more ADHD-like than the method we're talking about here.

[-] drperil@lemm.ee 26 points 10 months 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 2 points 10 months 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

[-] Trainguyrom@reddthat.com 2 points 10 months ago

I think I do something similar. Basically.10-7=3, 3+3=6 so 7+3+3=13 or simplified 7+6=13. Or like the above with 7+7=14 therefore 7+6=13

[-] CallMeMrFlipper@lemmy.world 2 points 10 months ago

That's exactly how I do it!

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[-] MTK@lemmy.world 21 points 10 months ago

It's just a thing people do, has nothing to do with adhd

[-] MisterCurtis@lemmy.world 19 points 10 months ago

Isn't this how they teach math now?

[-] usernamefactory@lemmy.ca 10 points 10 months ago

I’m 40 years old, and that’s how I was taught. We were quizzed up to 12x12, and that’s way too many products to handle with just rote memorization.

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[-] Archangel1313@lemmy.ca 18 points 10 months 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 2 points 10 months 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?

[-] Grass@sh.itjust.works 15 points 10 months ago

everything calculated in my head is just various examples of this daisy chained together

[-] Michal@programming.dev 13 points 10 months ago

The way i calculate this, is knowing that 7 is 10-3, and 6 is 3+3.

So, 7 + 6 = 10 + 3 = 13

[-] rustyfish@lemmy.world 3 points 10 months ago

Kinda the same.

I need 3 to get to 10 from 7. After that just ad the rest (6-3). Resulting in 13.

[-] Dyskolos@lemmy.zip 11 points 10 months ago

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

[-] Agent641@lemmy.world 11 points 10 months 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.

[-] randamumaki@lemmy.blahaj.zone 1 points 10 months ago

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

[-] Nangijala@feddit.dk 11 points 10 months ago* (last edited 10 months 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.

[-] TwigletSparkle@lemmy.blahaj.zone 9 points 10 months ago* (last edited 10 months ago)

7+6

=8+5

=9+4

=10+3

=13

[-] DaddleDew@lemmy.world 9 points 10 months ago

Same kind of trick, but for additions involving 7, I subtract 3 from the other number.

[-] RejZoR@lemmy.ml 9 points 10 months ago* (last edited 10 months 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.

[-] gandalf_der_12te@discuss.tchncs.de 8 points 10 months ago* (last edited 10 months ago)

i actually do do this. also sometimes 7 + 6 = 7 + (3 + 3) = (7 + 3) + 3 = 10 + 3 = 13!

btw: i studied math.

[-] Feathercrown@lemmy.world 7 points 10 months ago

Not adhd and I do this. I think this is just an effective way to do mental math

[-] undefinedValue@programming.dev 3 points 10 months ago
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[-] frostysauce@lemmy.world 8 points 10 months ago

Six is two threes and seven plus three is ten so then we have the leftover three and add that to get thirteen.

Also, not everything is ADHD.

[-] GraniteM@lemmy.world 7 points 10 months ago

I'm pretty sure they just had us brute-force memorize all of the single digit additions and multiplications in grade school. Seemed to work out okay for me.

[-] cheese_greater@lemmy.world 6 points 10 months ago

Stop giving away our secrets...smh

[-] barefootrambling@autistics.life 5 points 10 months ago

@Stamets

Is that NOT how the NT world does math???

🤯

[-] einlander@lemmy.world 5 points 10 months ago* (last edited 10 months ago)
6+6 = 12
+1 = 13
[-] BilboBargains@lemmy.world 4 points 10 months ago

Is this mostly a ADHD thing? They tried to make me learn times tables at school but that never stuck. Recently had to solve a problem with a CRC and part of that was manually calculating a long division in binary. At some point realised I didn't even know how to do that in decimal so wound the clock back 35 years and learnt it from scratch. Badda bing badda boom, working CRC 🤓

[-] AusatKeyboardPremi@lemmy.world 2 points 10 months ago

I would prioritise making a perfect 10 out of that 6, and then handling the remainder.

7 + 6
3 + 4 + 6
3 + 10
13

Also, how is this relevant to ADHD?

[-] alexcleac@szmer.info 1 points 10 months ago

I usually do that approach with multiplication of big numbers and square root calculation. Usually make it at most 10% error, which I consider quite a win :)

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this post was submitted on 18 Jun 2025
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ADHD memes

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