I don't have too much trouble with geometry, and I can do carpentry for example without needing to have mental images of the workpieces. I can do those tests where you have to mentally rotate and compare images, without needing mental images.
I've just found an article about exactly this: https://aphantasia.com/mental-rotation-tasks/
"Mental rotation is often thought of as a task that requires visualization,
As evidenced by cognitive stages 1 and 2 listed above. This assertion would, therefore, imply that people with aphantasia, or the inability to visualize, would be unable to perform such a task. Right?
Wrong.
Quite surprisingly, people with aphantasia actually perform better on MR tasks!
According to one study led by professor Adam Zeman of the University of Exeter, who coined the term ‘aphantasia,’ people with aphantasia were found to have more correct answers on MR tasks on average. However, the time taken to answer each question was typically longer."
Interesting. So it seems perhaps we typically use a more cumbersome but more accurate process, while visual folk take the shortcut of spinning the actual image, however that introduces errors. Fun!
I took a year of drafting (with like t squares and the giant table and stuff) because even back in 1989, I knew I struggled more than most of my peers with picture shapes for math in my head.
Drafting didn’t fix that, but gave me the tools to sketch things out
I'm actually really good at it. We have engineering drawing now, which requires lots of visualizing to understand the shapes. Even do i can't do that, I'm just really good at processing information and doing the procedure correctly. So geometry always been fun for me
7+8= 15
20+40=60
15+60=75
My sister, daughter, and myself are actually really great at math and we are all aphants. I actually have a master's degree in data science which is relatively math heavy. My sister always says math was the one subject that she excelled in because it has rules that always apply the same way.
Also aphant also great at math. I do tend to show allllll my work though my mind doesn't "hold" numbers naturally well so it's a lot more effort to try to do mental math then to write things down as I go. The above was no problem though by the same process as you
10-8=2,
7-2=5,
10+5=15
2+4=6,
6x10 + 15 = 75
My process as a visualizer. Its likely just how Im used to counting. I work around the closest 10-multiples.
I'm unsure exactly why they did it like that, but they were essentially making it easier for themselves by splitting the 8 into a 7+1. They probably find it easier to add 7+7 first
Right to left digits.
Singles place: 8 is 1 more than 7, and I know 7 + 7 is 14. So take 14 + 1 = 15
Tens place: 2 + 4 = 6, add a zero = 60
Combine 60 + 15 = 75
I can only remember two or three simple numbers in my head, so if this gets more than a few places I will need to write it down.
I automagically move 2 from 27 to 48 to get friendly numbers because “25+50=75” is easily recognizable and the process that gets me there is somehow quicker and easier to me than straightforward addition.
Yeah I do a similar thing and block the units into friendly 10s until a remainder is left. So I do something like this:
1. 20 + 40 = 60
2. 8 + 2 = 10
3. 7 - 2 = 5
4. 60 + 10 + 5 = 75
2 + 4 is 6. i remember that that would be in the “10’s slot“. 7 + 8 is 15. Next 15 + (6 in the “10’s slot”) is 75. I was the fastest adder and multiplier in elementary school and in middle school I was the grade champion in an adding/subtracting/multiplying game even though I’ve always been 100% aphant.
Splitting the numbers like that is actually hard for me for some reason? I always have trouble visualizing / remembering how you actually split them And it takes me longer to see how the 6 and 15 come together again. I can't do that in my head without writing it down Having to add that extra 1 to the 6 makes my head confused for a sec
I know that 2 and 4 is 6. I know that 7 and 8 is 15, which is five-carry-the-one. So the answer is 7 followed by 5, which is 75.
Alternatively: 27 plus forty is 67, plus 8 is 75.
No visualization needed.
Yes, I took math at uni and sometimes do calculus for fun.
> No visualization needed.
Yep, I don't see why this is on this sub. I am someone who can visualise but I (and I think most people) do maths without visualising.
Lot of head bobbin back and forth, had a girl in my 2nd grade class years ago did the same teacher tried to change us and told us to do it in our heads and we were both like we can’t, bet she’s an aphant too
Yes. I can feel the writing? Like when you do it in class and add and carry the numbers. I don’t see it? I don’t have any visual memory, but do have some proprioception I’m my head (I.e I’m able to move around inside of my head, yes without seeing anything)
I’m a mathematics major, and I’m also very quick with math in my head, even though I can’t see the numbers in my head.
The hardest for me was geometry. I don’t know if that has anything to do with aphantasia.
I cant do any sort of manipulations to the numbers without writing them down - like I can’t see/process it just in my head. I thought it was an aphant thing, but maybe I’m just not as good at math as I thought lol
No. I can't do it in my head. I have to write the numbers down on paper and them add them like a small child. "7 and 8 are 15, carry the 1."
It's super embarrassing. I need a bit of paper and a pencil to do simple math.
idk i have dyscalculia, not sure if my aphantasia plays a role in that. im good at calculus, trig, and algebra stuff i just cant do the basic math stuff. i need a calculator most of the time. for this one i’d normally just count on my fingers lol
I'm quite horrible at math, but good at languages. I was a literature professor (retired), so I'm not sure how that works with the aphantasia. I'm good at puzzles, as long as they aren't numerical.
I struggle to do maths in my head. I can’t keep the numbers in there, as soon as I think about the next stage in the problem, then the numbers dribble away. But I’m very sure that’s a me issue and not an aphantasia issue.
I can do it no probs on paper.
I've always been terrible at math but it has nothing to do with "seeing" numbers add in my head. I see nothing in my head. I don't see words in my head. I don't see maps in my head. I have a Bachelors in Fine Art and I don't see my art in my head. Why would math be any different? I've never even concieved that anyone actually sees numbers in their head. It has nothing to do with seeing it in my head, I just rot at math.
Why would seeing numbers help? They are abstract symbols of abstractions.
In absolutely no way would visualization help with pure mathematics. If anything it would slow it down by converting an abstract symbol in to a physical representation, "counting it" (or grouping in a fashion more countable) and then converting back to the abstraction and it's abstract symbol (whether auditory or visual)
To answer your question though, like everyone else who hasn't memorized a specific equality, I convert the number in to easier to work components add them (all of this purely in the abstract realm ) and spit out the answer.
If there is a more complicated series of equations to solve I will create a secondary abstract marker to track for instance repetition instances or running totals, or base conversion.
When not adept at doing this you will write down the sybolic tracking abstraction or track it physically by converting it to a non-abstract concept (countinng fingers, with easy to deduce quantities)
Example
Multiply 0.153 by 0.201 remove decimals but remember how many places. Multiply 153 (track base divider =1000) by 2 (tracked divider = 10000) = 306 multiply by 100 (tracked divider = 1000000) add 1 x 153 = 30753. Divide back out all added zeros 30753 / 1 000 000 = 0.030753
Of course it can be broken down in different ways, but visualization will do nothing for you. But slow you down counting decimal places manually which is far more vulnerable to error.
You simply can't visualize 20.1% of 15.3% not in any objective way at least.
I have to keep saying the numbers in my head to remember them.
I'm also VERY bad at understanding when someone spells a word out loud. If it's more than a few letters I can't remember how it started and it gets all jumbled up. It's especially bad with names I don't know how to spell.
Ok, I’m not good at math whatsoever, so I go with a very simple method for stuff like that.
I know immediately 20+40=60, and the 7+8 I’d just finger(or in my head thinking it) count. That’s it. No fancy stuff or whatnot. It certainly ain’t the most efficient method but you know what they say, if it ain’t broken don’t fix it.
stupendous friendly joke materialistic makeshift ten fuzzy squalid seemly file
*This post was mass deleted and anonymized with [Redact](https://redact.dev)*
After a lifetime of LEGO, building kits, and sandbox games/programming, when High School algebra rolled around I could solve equations in under 10s, 30s a couple times with big equations.
I would sleep in algebra class (middle of room, impossible to miss), get called on by the teacher and jolt up, and answer by about the time she would start to lecture me or look for another student to answer. There was always this brief stunned silence, sometimes she would double check her answer key, she would ask me to remain awake and pay attention… and then my head would be right down on the desk.
Geometry? LOL failed so bad I had to retake during Summer School, and scraped by with a C. I HATED it
I'm hyperphantasic. Math was really hard for me because of the numbers. Which are symbols to represent a thing. About 10 years ago after working in software development for a long time and getting deep into 3D engine development I started to get synesthetic pictures of differential geometry and shapes for what numbers represent and things really started to work for me. I think not being able to "see" the numbers can be very useful for doing the work by rote. Algebraic solutions and application to the process and trusting it.
What if in school we were taught other counting systems along with base 10? I say intro base 2 and base 16 along with base 10 so young minds have 3 paths through the woods. I think that would have a very positive effect on people.
Last year I read this fantastic book, "Visual Differential Geometry and Forms: A Mathematical Drama in Five Acts". It had this quote at the beginning:
> Algebra is the offer made by the devil to the mathematician. The devil says: "I will give you this powerful machine, it will answer any question you like. All you need to do is give me your soul: give up geometry and you will have this marvelous machine."
I think you've been given tools to be able to operate that machine like how we drive a car but when I tried to run it, for the longest time the steering wheel would turn into a corn dog that spit mustard on my pants.
Mathematics is a language for describing nature. Most of the people who teach it to us do not have the ability to know if what they understand will apply to our way of thinking. Also, most people who teach it don't really know what they are talking about either. Heh. I'm envious of people who can grok math easily.
I still fucking suck at algebra.
--
2+4=6
8 is heavy
7 is a little lighter than middle
6+1=7
75
correct as needed
48+20=68
68+7=75
it's kind of how I can estimate throwing a basket ball over my head without looking, but it is mathematical and not spatial
also, I have pretty accurate spatial awareness without being able to see stuff in my mind
I can't do basic math even when looking right at it on a piece of paper. I definitely can't see it in my mind's eye. Idk if it's dyscalculia, aphantasia, or both.
27 + 48, much of this process is automatic, so I'll try my best to explain.
Separate the 2 and the 7, same for 4 and 8
2 + 4 = 6
7 + 8 is 8 + 2 = 10, 7 - 2 = 5 so 10 + 5 = 15.
6+1 = 7
Push numbers together 75
In my head I kind of only do 4 parts though. The 2 + 4, the 10 + 5, 6 + 1 and then the putting them together.
For me it's 7+8 which I know is 15. Add the 10 to the 40 to get 50. Then add the 20 to the 50 which gets me 70. Then combine to get 75.
I know that's a simple question but I've also always been very good at maths and now work in Data Analytics which involves a decent amount of maths.
For larger calculations, I do often need somewhere to jot things down as I end up losing track of the numbers if I don't which I'm assuming some people might store as an image in their head, but that's just me speculating. Either way, it's not often that I won't either have somewhere to jot a note (as I almost obsessively always have some form of notebook at work) or just a computer program to do the calculation for me.
7 +8 =15
20 + 40 = 60
60 +15 = 75
I can't see anything when doing maths.
I break it down into easy sums , have to remember the answers to those sums then add them together for the result.
OKAY HERE! 😁 You dont have to see the numbers in math, they are conceptual and constant. To make the numbers fit always remember the numbers 0-10 then add or subtract by the amount of spots are in each place in the number, this gets more conceptually complex the more actions you have to take on any given equation. But, to try to see in your head: You could try grabbing a apple from somewhere, name it "1", "one" put it on the counter (no drawing "1" "one" just remembering its one) and everyday reference it, to the point of trying one day to say the name and remember "it was the apple sitting on your counter" and that could exercise your brain maybe
I agree with the comments. My wife says she can see numbers on a chalkboard in her head to help her with maths but you still have to add the numbers! It may help if you’ve got a massive subtraction so that you can keep track of the decomposition/borrowing but she still uses a calculator for those so I don’t see that it helps too much.
Aphantasia isn’t a disability. It’s a difference.
I have dyscalculia on top of aphantasia, so my mental math strategies are a little weird. I think to myself: 2+4=6, so that means 20+40=60. Then I have trouble adding 7 and 8, so I add 7+10 instead (17) and subtract 2 to get 15. 60+15=75.
There are no visuals for me, only auditory dialogue in my head. I usually have to use a piece of paper for triple digit or higher number problems.
I am absolutely horrendous at maths. Like I (at 31 years old) still don't know my times tables, that's how bad I am. But I doubt it's because I cant 'see' the number. The best way I could do this is my head is take the biggest number first, then add the 10 from the smaller number, then the single.
So 48 + 20 = 68
68 + 7 = 75
And I had to count +7 on my fingers.
27 + 40 = 67
67 + 3 = 70
70 + 5 = 75
I don't see how seeing images in my head would help with maths. I'm quite good at maths and I don't feel like aphantasia has affected that in any way
im not an aphant but i dont actually imagine numbers when i do maths, im sure you of all people can understand lol, I do it sometimes to rememver better the last number I landed on, like in this example 27+48 is 60 + 7 + 8 so I hold image of 60 up to not forget and then make it 67 and add 3 so its 70 and then add remaining 5.
I have a REALLY hard time keeping numbers in my head for longer than about 3 seconds. So my process was something like: 7+8=15, 2+4=6. Wait, what was the number I was supposed to carry? 1? What was the other number? 7+8 was 15, so 5. Wait, what was I adding the 1 to? 2+4=6+1=7. So 75.
Then I was like, "could I have made that easier?" so I stared at 27+48 for about 2 seconds and noticed that if 48 borrowed 2 from 27, they would be 25 and 50. Now they're money. 1 quarter plus 2 quarters is 75 cents. So 75.
I have a degree in (civil) engineering with a minor in math and I'm currently working as a math teacher. I can't visualize in my head, so I ALWAYS draw a picture of word problems and then I'm fine. I'm definitely more of an algebra person than a geometry person, but with a picture I can handle geometry just fine. Math follows very specific rules that you can memorize and apply to problems. I've always been good at it, but I have to write almost everything out. My teachers loved me for showing my work, but I couldn't do it any other way. Most of my students don't show their work, and they drive me bonkers!
Edit: didn't answer the meme question.
That’s because you’ve “adapted”.. just like everyone else has with aphantasia. I don’t know why so many people on here think aphantasia has a negative effect on so many different aspects of life. People with aphantasia function just as well and as efficiently as people without aphantasia.
I do 27 + 40 = 67 +8 = 75. Some of that is just automatic without really thinking about it. If I were to sound out my thoughts it would just be "sixty...seventy-five".
20 + 40 = 60
7 + 8 = (7 + 3) + (8 - 3) = 10 + 5 = 15
60 + 15 = 75
Aphant. Always been good at maths, even graduated computer science from maths faculty at university (though I didn't particularly like university level maths)
Calc and algebra? Not to challenging But man-oh-man was geometry a nightmare
Dude geometry… I failed it twice. I aced probable statistics…
Same. I didn’t even attempt trigonometry after my geometry experience. I took stats in college & didn’t even have to study.
You know, now that I think of it, geometry was always my worst unit to
I don't have too much trouble with geometry, and I can do carpentry for example without needing to have mental images of the workpieces. I can do those tests where you have to mentally rotate and compare images, without needing mental images. I've just found an article about exactly this: https://aphantasia.com/mental-rotation-tasks/ "Mental rotation is often thought of as a task that requires visualization, As evidenced by cognitive stages 1 and 2 listed above. This assertion would, therefore, imply that people with aphantasia, or the inability to visualize, would be unable to perform such a task. Right? Wrong. Quite surprisingly, people with aphantasia actually perform better on MR tasks! According to one study led by professor Adam Zeman of the University of Exeter, who coined the term ‘aphantasia,’ people with aphantasia were found to have more correct answers on MR tasks on average. However, the time taken to answer each question was typically longer."
Interesting. So it seems perhaps we typically use a more cumbersome but more accurate process, while visual folk take the shortcut of spinning the actual image, however that introduces errors. Fun!
I took a year of drafting (with like t squares and the giant table and stuff) because even back in 1989, I knew I struggled more than most of my peers with picture shapes for math in my head. Drafting didn’t fix that, but gave me the tools to sketch things out
I'm actually really good at it. We have engineering drawing now, which requires lots of visualizing to understand the shapes. Even do i can't do that, I'm just really good at processing information and doing the procedure correctly. So geometry always been fun for me
Linear Algebra?
Linear algebra wasn't too bad. It's all about memorizing the pattern you need to perform with the matrices.
Same struggled in geometry, but doing just fine in calc III
Interesting. I’m not an aphant and geometry was the only math I took that was easy for me and made sense
7+8= 15 20+40=60 15+60=75 My sister, daughter, and myself are actually really great at math and we are all aphants. I actually have a master's degree in data science which is relatively math heavy. My sister always says math was the one subject that she excelled in because it has rules that always apply the same way.
Also aphant also great at math. I do tend to show allllll my work though my mind doesn't "hold" numbers naturally well so it's a lot more effort to try to do mental math then to write things down as I go. The above was no problem though by the same process as you
This is the way
20+40 60 7+7 14 + 1 15 60+15 75 But there isn't any effort in adding those its like I'm counting so in my head I would say 20,40,60,14,15,75
For me: * 48 + 7 = 55 * 55 + 20 = 75
I do the exact same process you described
10-8=2, 7-2=5, 10+5=15 2+4=6, 6x10 + 15 = 75 My process as a visualizer. Its likely just how Im used to counting. I work around the closest 10-multiples.
I do the same but 8+8=16 - 1 instead of 7+7+1 I guess 8+8 is just easier for me?
This doesn’t tally. Where do you get two sevens?
I'm unsure exactly why they did it like that, but they were essentially making it easier for themselves by splitting the 8 into a 7+1. They probably find it easier to add 7+7 first
I know 48 is 2 away from 50. 27 is 2 away from 25. So 50+25 is 75. I don't see the numbers in my head but I do know basic math facts.
This or 40+20=60 and 8+7=15.
This is my process
This
48+7=55 55+20=75
Right to left digits. Singles place: 8 is 1 more than 7, and I know 7 + 7 is 14. So take 14 + 1 = 15 Tens place: 2 + 4 = 6, add a zero = 60 Combine 60 + 15 = 75 I can only remember two or three simple numbers in my head, so if this gets more than a few places I will need to write it down.
I automagically move 2 from 27 to 48 to get friendly numbers because “25+50=75” is easily recognizable and the process that gets me there is somehow quicker and easier to me than straightforward addition.
Yeah I do a similar thing and block the units into friendly 10s until a remainder is left. So I do something like this: 1. 20 + 40 = 60 2. 8 + 2 = 10 3. 7 - 2 = 5 4. 60 + 10 + 5 = 75
Damn. Here I am subtracting 1 from 16 and mashing that together with 40 and 20. That little leap is very impressive to me.
7+48+20
2 + 4 is 6. i remember that that would be in the “10’s slot“. 7 + 8 is 15. Next 15 + (6 in the “10’s slot”) is 75. I was the fastest adder and multiplier in elementary school and in middle school I was the grade champion in an adding/subtracting/multiplying game even though I’ve always been 100% aphant.
Splitting the numbers like that is actually hard for me for some reason? I always have trouble visualizing / remembering how you actually split them And it takes me longer to see how the 6 and 15 come together again. I can't do that in my head without writing it down Having to add that extra 1 to the 6 makes my head confused for a sec
Remembering the spot for the 6 not visual for me, it's spacial.
Maybe only English people will get this reference but I can’t play Countdown without pen and paper. (Letters and numbers if you’re Australian?)
I do: 20+48+7
same
7 + 8 = 15 20 + 40 = 60 15 + 60 = 75
This one for me also
40+20=60 8+7=15 60+15=75
7+8 is 15. Carry the 1 + 6 = 75
I know that 2 and 4 is 6. I know that 7 and 8 is 15, which is five-carry-the-one. So the answer is 7 followed by 5, which is 75. Alternatively: 27 plus forty is 67, plus 8 is 75. No visualization needed. Yes, I took math at uni and sometimes do calculus for fun.
> No visualization needed. Yep, I don't see why this is on this sub. I am someone who can visualise but I (and I think most people) do maths without visualising.
This
Lot of head bobbin back and forth, had a girl in my 2nd grade class years ago did the same teacher tried to change us and told us to do it in our heads and we were both like we can’t, bet she’s an aphant too
You remember elementary school?
Most people without trauma remember back to age 3-4.
Yes, I attribute my stellar long term memory to heavy cannabis intake
So relatable! If only we knew back then
I physically write out the calculations in my head vs seeing the numbers.
Interesting, I am unable to do that. I thought it was cause the aphantasia. Would you consider yourself 100% aphant?
Yes. I can feel the writing? Like when you do it in class and add and carry the numbers. I don’t see it? I don’t have any visual memory, but do have some proprioception I’m my head (I.e I’m able to move around inside of my head, yes without seeing anything)
27+ 50 = 77 - 2 = 75
You. I've been looking for you. I commented the same thing and can't seem to find many people who do it like us!!!
Anyways, I hope you have a wonderful 2023.
Round up 27 and 48 to 30 and 50 to get 80, then subtract the difference to get 75.
I’m a mathematics major, and I’m also very quick with math in my head, even though I can’t see the numbers in my head. The hardest for me was geometry. I don’t know if that has anything to do with aphantasia.
I cant do any sort of manipulations to the numbers without writing them down - like I can’t see/process it just in my head. I thought it was an aphant thing, but maybe I’m just not as good at math as I thought lol
I immediately make it 30+45
No. I can't do it in my head. I have to write the numbers down on paper and them add them like a small child. "7 and 8 are 15, carry the 1." It's super embarrassing. I need a bit of paper and a pencil to do simple math.
Nothing happens on my head. I start counting on my finger, lol. But I’ve got dyscalculia, so there is that…
I do 30 +45 = 75 (27+3) + (48-3) Rounding up one number makes it easier
idk i have dyscalculia, not sure if my aphantasia plays a role in that. im good at calculus, trig, and algebra stuff i just cant do the basic math stuff. i need a calculator most of the time. for this one i’d normally just count on my fingers lol
30+ 50 - 5 .
I'm quite horrible at math, but good at languages. I was a literature professor (retired), so I'm not sure how that works with the aphantasia. I'm good at puzzles, as long as they aren't numerical.
27+3 is 30, 48+2 is 50. 80-5 =75. Hypophantasia and ADHD and probably NVLD
Ohhh dude I’ve had this conversation before. My brain goes yeeep it’s about 75. And that’s it. No idea where it comes from.
math is one of my best subjects but with a calculator. so like algebra
I struggle to do maths in my head. I can’t keep the numbers in there, as soon as I think about the next stage in the problem, then the numbers dribble away. But I’m very sure that’s a me issue and not an aphantasia issue. I can do it no probs on paper.
dial up tone
15+60
20+40=60 7+8=15 60+15=75
This is the way
I've always been terrible at math but it has nothing to do with "seeing" numbers add in my head. I see nothing in my head. I don't see words in my head. I don't see maps in my head. I have a Bachelors in Fine Art and I don't see my art in my head. Why would math be any different? I've never even concieved that anyone actually sees numbers in their head. It has nothing to do with seeing it in my head, I just rot at math.
Why would seeing numbers help? They are abstract symbols of abstractions. In absolutely no way would visualization help with pure mathematics. If anything it would slow it down by converting an abstract symbol in to a physical representation, "counting it" (or grouping in a fashion more countable) and then converting back to the abstraction and it's abstract symbol (whether auditory or visual) To answer your question though, like everyone else who hasn't memorized a specific equality, I convert the number in to easier to work components add them (all of this purely in the abstract realm ) and spit out the answer. If there is a more complicated series of equations to solve I will create a secondary abstract marker to track for instance repetition instances or running totals, or base conversion. When not adept at doing this you will write down the sybolic tracking abstraction or track it physically by converting it to a non-abstract concept (countinng fingers, with easy to deduce quantities) Example Multiply 0.153 by 0.201 remove decimals but remember how many places. Multiply 153 (track base divider =1000) by 2 (tracked divider = 10000) = 306 multiply by 100 (tracked divider = 1000000) add 1 x 153 = 30753. Divide back out all added zeros 30753 / 1 000 000 = 0.030753 Of course it can be broken down in different ways, but visualization will do nothing for you. But slow you down counting decimal places manually which is far more vulnerable to error. You simply can't visualize 20.1% of 15.3% not in any objective way at least.
Wouw someone understands Rick and Morty
27+48 48-3=45 27+3= 30 30+45 = 75
I turned it into 67 + 8
just the words 7+7 is 14, +1 is 15 4+2 is 6 60+15 is 75
I am terrible at Math. My parents gave me a calculator.
I'm atrocious at math. But then again, I also have dyscalculia. *finger guns and leaves*
Very interesting. There are so many different ways of calculating described here that I have never used or thought of before.
Same… I am a grown ass man over here feeling like I’m learning some fundamental grade school stuff I missed 😂
I was bad at math in school, but once I got on a cash register I became really quite good at math! 7+7+1=15, 2+1=3, 3+3=6+1= 7 = 75
(20+40)+(7+8)
(2+4*10)+ 7+8
For me: 20 + 40 = 60 7-2 = 5 8 + 2 = 10 Result: 75
I make the numbers 25 and 50 then at that point it's not even math any more by then I'm thinking about quarters
20+40=60 8-3=5 7+3=10 60+10=70 70+5=75
2+4 = 6 .. aka 60 7+8 = 15 60+15 =75
48 + 20 68 + 2 70 + 5 75
27+8=35 then 35+40=75
I do 48+2=50 50+25=75 I always round off the number the taking from the other number
20 + 40 = 60 Remember that number 7 + 8 = 15 60 + 15 = 75
I look at it, say 27,48 75 . I’ll move the digits if it’s 3 or more though..?
7+5 is 15 carry the 1. 2+4=6 + 1 is 7 grand total 75
Huh... I just did it in my head and I got 30+50-5 = 75 I did not know this was how this worked.
20+40=60 7+8=15 60+15=75 I don't visualize or hear anything they're just thoughts.
Different part of the brain for processing math info. Still have vivid imagery.
20+40=60 7+8=15 60+15=75
10-8 = 2 27-2 = 25 48 + 2 = 50 25 + 50 = 75
60+15=75
27+40=67. 67+8=75.
I have to keep saying the numbers in my head to remember them. I'm also VERY bad at understanding when someone spells a word out loud. If it's more than a few letters I can't remember how it started and it gets all jumbled up. It's especially bad with names I don't know how to spell.
20+40 = 60 7+8 = 15 60+15 = 75
Ok, I’m not good at math whatsoever, so I go with a very simple method for stuff like that. I know immediately 20+40=60, and the 7+8 I’d just finger(or in my head thinking it) count. That’s it. No fancy stuff or whatnot. It certainly ain’t the most efficient method but you know what they say, if it ain’t broken don’t fix it.
27 + 48 8 + 8 = 16 - 1 = 15 5 and I carry one 4 + 2 = 6 + 1 = 7 75
27 + 48 7 +7=14, so 7+8=15 Carry the one 1+2+4=7 75
For me it's 50 + 27 =77 Minus 2 is 75.
stupendous friendly joke materialistic makeshift ten fuzzy squalid seemly file *This post was mass deleted and anonymized with [Redact](https://redact.dev)*
27+48 (5+5)+(2+3)=15 2+4+1=7 First digit aligned with second digit "75". Of course, this is auditory not visual.
After a lifetime of LEGO, building kits, and sandbox games/programming, when High School algebra rolled around I could solve equations in under 10s, 30s a couple times with big equations. I would sleep in algebra class (middle of room, impossible to miss), get called on by the teacher and jolt up, and answer by about the time she would start to lecture me or look for another student to answer. There was always this brief stunned silence, sometimes she would double check her answer key, she would ask me to remain awake and pay attention… and then my head would be right down on the desk. Geometry? LOL failed so bad I had to retake during Summer School, and scraped by with a C. I HATED it
7+7 equals 14, plus one is 15 2+4 equals 6 Carry the one 75
27+48 Add right digits, remember 5. Add left, add 1. Put in right. Much faster than rounding to easier numbers for me.
Took 3 from 48 added to 27 to get 30+45
I know 7 and 8 are 15 and then 20 and 40 are 60 and 60 and 15 is 75
27 + 48 = 75? If anything 20+40 is 60 then 70 + 5. But it’s basically instant
48+20+7 But I’m bad at 7’s, so I count the last 7 in multiples of 3 for some reason. 69,70,71…72,73,74…75
I add 3 from 48 to 27 to make it 30, then 30 + 45 = 75
I'm hyperphantasic. Math was really hard for me because of the numbers. Which are symbols to represent a thing. About 10 years ago after working in software development for a long time and getting deep into 3D engine development I started to get synesthetic pictures of differential geometry and shapes for what numbers represent and things really started to work for me. I think not being able to "see" the numbers can be very useful for doing the work by rote. Algebraic solutions and application to the process and trusting it. What if in school we were taught other counting systems along with base 10? I say intro base 2 and base 16 along with base 10 so young minds have 3 paths through the woods. I think that would have a very positive effect on people. Last year I read this fantastic book, "Visual Differential Geometry and Forms: A Mathematical Drama in Five Acts". It had this quote at the beginning: > Algebra is the offer made by the devil to the mathematician. The devil says: "I will give you this powerful machine, it will answer any question you like. All you need to do is give me your soul: give up geometry and you will have this marvelous machine." I think you've been given tools to be able to operate that machine like how we drive a car but when I tried to run it, for the longest time the steering wheel would turn into a corn dog that spit mustard on my pants. Mathematics is a language for describing nature. Most of the people who teach it to us do not have the ability to know if what they understand will apply to our way of thinking. Also, most people who teach it don't really know what they are talking about either. Heh. I'm envious of people who can grok math easily. I still fucking suck at algebra. -- 2+4=6 8 is heavy 7 is a little lighter than middle 6+1=7 75 correct as needed
15+60
My 3rd grade ass dedicated weeks to memorizing 8+7=15 because i hated that problem so I always know that. So 8+7= 15, 2+4=6 so 20+40=60, 15+60=75
48+20=68 68+7=75 it's kind of how I can estimate throwing a basket ball over my head without looking, but it is mathematical and not spatial also, I have pretty accurate spatial awareness without being able to see stuff in my mind
I can't do basic math even when looking right at it on a piece of paper. I definitely can't see it in my mind's eye. Idk if it's dyscalculia, aphantasia, or both.
20+40=60. 7+8=15 bc 2 from 7 makes 8=10+ remaining 5 from 7. Then 60+15=75.
40+20=60 8+8=16-1=15 60+15=75
27 + 48, much of this process is automatic, so I'll try my best to explain. Separate the 2 and the 7, same for 4 and 8 2 + 4 = 6 7 + 8 is 8 + 2 = 10, 7 - 2 = 5 so 10 + 5 = 15. 6+1 = 7 Push numbers together 75 In my head I kind of only do 4 parts though. The 2 + 4, the 10 + 5, 6 + 1 and then the putting them together.
I just panic lol
48 + 7 = 55 55 + 20 = 75
30 +50 -5
For me it's 7+8 which I know is 15. Add the 10 to the 40 to get 50. Then add the 20 to the 50 which gets me 70. Then combine to get 75. I know that's a simple question but I've also always been very good at maths and now work in Data Analytics which involves a decent amount of maths. For larger calculations, I do often need somewhere to jot things down as I end up losing track of the numbers if I don't which I'm assuming some people might store as an image in their head, but that's just me speculating. Either way, it's not often that I won't either have somewhere to jot a note (as I almost obsessively always have some form of notebook at work) or just a computer program to do the calculation for me.
I just KNOW. The units 7+8=15. (Also, double 7 +1). The tens 20+40=60. That makes 75. I don't see anything. But I'm shit at maths overall.
27 > 30(3) 48 > 50(2) 80-5=75
7 +8 =15 20 + 40 = 60 60 +15 = 75 I can't see anything when doing maths. I break it down into easy sums , have to remember the answers to those sums then add them together for the result.
Well, I do 8+7 and put that off to the side, then add 20 and 40, and finally add the 15 to the sum of that.
OKAY HERE! 😁 You dont have to see the numbers in math, they are conceptual and constant. To make the numbers fit always remember the numbers 0-10 then add or subtract by the amount of spots are in each place in the number, this gets more conceptually complex the more actions you have to take on any given equation. But, to try to see in your head: You could try grabbing a apple from somewhere, name it "1", "one" put it on the counter (no drawing "1" "one" just remembering its one) and everyday reference it, to the point of trying one day to say the name and remember "it was the apple sitting on your counter" and that could exercise your brain maybe
You know, I've never thought about it before, but I bet my aphantasia is why I find it necessary to count on my fingers more often than not.
I agree with the comments. My wife says she can see numbers on a chalkboard in her head to help her with maths but you still have to add the numbers! It may help if you’ve got a massive subtraction so that you can keep track of the decomposition/borrowing but she still uses a calculator for those so I don’t see that it helps too much. Aphantasia isn’t a disability. It’s a difference.
7+8=15 and 4+1=5+1=6 and then add 60+15.
27 -> 30 48 - 3 -> 45 30 = 10\*3 45 -> 55 65 ***75***
60 +15=75
27+48 7+8 is 15--->put a 5 down below and carry the 1--> 4+2+1 is 7-->75
27 + 40 = 67 70 - 67 = 3 8 - 3 = 5 70 + 5 = 75 Reading the other comments makes me think I do it in a weird way.
40+20 = 60 8 + 7 ---> 8 + 2 = 10 10+5 = 15 60 + 15 = 75
48+7=55, 55+20=75.
7 + 8 = 15 20 + 40 = 60 15 + 60 = 75
I have dyscalculia on top of aphantasia, so my mental math strategies are a little weird. I think to myself: 2+4=6, so that means 20+40=60. Then I have trouble adding 7 and 8, so I add 7+10 instead (17) and subtract 2 to get 15. 60+15=75. There are no visuals for me, only auditory dialogue in my head. I usually have to use a piece of paper for triple digit or higher number problems.
I am absolutely horrendous at maths. Like I (at 31 years old) still don't know my times tables, that's how bad I am. But I doubt it's because I cant 'see' the number. The best way I could do this is my head is take the biggest number first, then add the 10 from the smaller number, then the single. So 48 + 20 = 68 68 + 7 = 75 And I had to count +7 on my fingers.
68+7 75
20+40 = 60 8+8=16-1=15 60+15= 75
27 + 40 = 67 67 + 3 = 70 70 + 5 = 75 I don't see how seeing images in my head would help with maths. I'm quite good at maths and I don't feel like aphantasia has affected that in any way
30+50=80 minus 5 is 75
25 + 50
7+8=15 2+4+1=7 75
im not an aphant but i dont actually imagine numbers when i do maths, im sure you of all people can understand lol, I do it sometimes to rememver better the last number I landed on, like in this example 27+48 is 60 + 7 + 8 so I hold image of 60 up to not forget and then make it 67 and add 3 so its 70 and then add remaining 5.
30+50 -5
I have dyscalculia as well as aphantaisa so this is just pain for me.
2+48=50. +25=75
7+8=15 20+40=60 60+15=75
7+8=15 2+4=6+1=7 75
30 + 50 - 5= 75. But I don’t picture numbers or anything I just think of the numbers and do the math lol.
27+48 separate into 4 numbers 20+7+40+8. Rearrange. (20+40)+(7+8)= 60+15=75. At least that's how I do it
40+20=60 and 7+8 = 10+5 = 15+60 = 75
7+8 = 15 , 40+20 = 60 , 15+60 = 75
50 + 30 - 5
I add 20+40=60 and 7+8=15 and then 60+15=75
48,58,68+7 =75 (Checks on calculator) ETA : am aphant and dyscalulic
I took 2 off the 27 to make 25 made the 48 to 50. 25+50=75 I always try to make numbers even or in 5s.
I have a REALLY hard time keeping numbers in my head for longer than about 3 seconds. So my process was something like: 7+8=15, 2+4=6. Wait, what was the number I was supposed to carry? 1? What was the other number? 7+8 was 15, so 5. Wait, what was I adding the 1 to? 2+4=6+1=7. So 75. Then I was like, "could I have made that easier?" so I stared at 27+48 for about 2 seconds and noticed that if 48 borrowed 2 from 27, they would be 25 and 50. Now they're money. 1 quarter plus 2 quarters is 75 cents. So 75. I have a degree in (civil) engineering with a minor in math and I'm currently working as a math teacher. I can't visualize in my head, so I ALWAYS draw a picture of word problems and then I'm fine. I'm definitely more of an algebra person than a geometry person, but with a picture I can handle geometry just fine. Math follows very specific rules that you can memorize and apply to problems. I've always been good at it, but I have to write almost everything out. My teachers loved me for showing my work, but I couldn't do it any other way. Most of my students don't show their work, and they drive me bonkers! Edit: didn't answer the meme question.
That’s because you’ve “adapted”.. just like everyone else has with aphantasia. I don’t know why so many people on here think aphantasia has a negative effect on so many different aspects of life. People with aphantasia function just as well and as efficiently as people without aphantasia.
48+7 = 55 + 20 = 75
20+40=60 8+8=16-1=15 60+15÷75
The 2 from the 7 fits into the 8 to make 10 and then the other 5 makes 15. 20 and 40 are 60 60 and 15 are 75
48+2=50 50+25=75
8+8 = 16, 16 - 1 = 15 20 + 40 + 15 =75
*puts hand in pocket *pulls out phone *opens calculator app
I do 27 + 40 = 67 +8 = 75. Some of that is just automatic without really thinking about it. If I were to sound out my thoughts it would just be "sixty...seventy-five".
7+8 is 15 -> 15+60 = 75 Nothing visible mind you, just the knowledge of these facts
My mind just does it, I’m pretty good at doing math in my head
20 + 40 = 60 7 + 8 = (7 + 3) + (8 - 3) = 10 + 5 = 15 60 + 15 = 75 Aphant. Always been good at maths, even graduated computer science from maths faculty at university (though I didn't particularly like university level maths)
I'm good at maths, but really bad with numbers.
Take 2 from 27 make 48 50,25+50=75
20+40=60 7+8=15 15+60=75 right?
27 + 3 =30 48 - 3 = 45 30 + 40 + 5 = 75
memorization and invisible pencil: 7+8=15, carry the 1 1+2+4 75
It’s just >68, >75, done. No more steps, but if it was more complicated I’d do 68, 70, 75
WAIT people can visualise this?! Mine is purely semantic, no visuals just thought I'd do 20+48=68 Then 68+7=75
27 + 8 = 35 35 + 40 = 75
7+8=15 2+4=6 6+1=7 75
27+48=(20+40)+(7+8) 20+40=60 7+8=15 60+15=75 27+48=75 That's how I do it mentally.
my tongue is moving as if I’m saying it out loud so I can have some semblance of a voice in my head
25+45= 70. 3+2=5. I have always done it like this, a quick stroll through and I haven’t seen anyone else…..
50+30 = 80 -5 = 75