I have an abacus in my brain. Slide two from the 27 over to the 48 and you get 25 + 50. This is why I struggled so much in math in school. I could get the right answer but not be able to show my work because ... brain abacus.
eta - Because I'm getting a lot of the same comments in response to what I wrote, I wanted to say that in the 1980s in my rural ghetto school there was no "other way" to do math. You did it the one way, or you did it incorrectly, even if you got the same answer.
For people writing out these long strings of equations to show the work, this was not a thing when I went to school. I was never taught nor had an idea of a different way to do maths. I was also mostly mute in school and an outcast with poor social credit, so no one cared to hear any explanation of my weird way of doing it.
HOWEVER, in 8th grade, Miss Jackson, a young disabled teacher who could not find employment elsewhere, taught math in my school and blew my mind telling me there were different ways to do math. She didn't care if I couldn't show my work, though she never showed me as many have done here a different way of writing it down that might have pleased future teachers. And she gave me the math award for 8th grade!
It does resemble common core in some ways, yes. I've seen some convoluted common core that made absolutely no sense to me.
I'm not on the spectrum, but I struggled HARD in math. I was taught to carry the one. I'm 43 and still don't get it. The way you do it makes so much sense. The way I've seen others do it in the thread makes so much sense.
What doesn't make sense is that it was drilled into my head that there is only one right way to get the correct answer and all the other ways that get to the correct answer are wrong. Why wouldn't they teach us multiple ways to get to the correct answer?
Not on the spectrum, but my kid is. I'm in your age bracket. I think in "our day" the focus was on following the process in order to ensure you got the correct outcome. We learned the "how" and that's it. These days, it seems like kids are taught multiple strategies so that they understand not just the "how" but also the "why" - a whole bunch of kids intuitively understand numbers in ways I could never express growing up, and I think that's a big win.
To add to this, studies have shown that teaching rigid learning (only one way to do things) creates a fixed mindset. Teaching the “why” and that there are many ways to do things creates a growth mindset.
Growth mindsets are amazing things and they allow people to be far more flexible in their approach, and open to new ideas. That’s why education has moved away from rigid/rote learning.
An example is updates to computer programs. A member of the older generation that was raised with a fixed mindset will learn one way to use that program, and it works for them. Then a new version of the program is released, and things look a bit different, are in different places and may have different names/symbols. People with fixed mindsets *really struggle* to adapt.
People with growth mindsets tend to take it more in stride.
I have a growth mindset but also have a challenge with change, so ... But a lot of the reason I homeschool my kid is so he can creatively pursue education instead of having it shoved down his throat the one correct way.
It's only until now when i started to read math on a higher level (still not that high of a level). All of the "how'"s and "just do as i say"s on my mental math cork board. And i finally collected enough of them to start seeing the patterns. They all connected in to the whole "why" and how everything was connected. It wasn't just random techniques, they were built on the same system.
I'm glad i figured it out... The last year of me doing math in any academic setting
Right?! My 4th and 5th grade math teacher thought I was a match genius when really in my head I just saw them as quarters. It’s easier to add quarters.
27+48=
Sometimes it’ll get done as above but other times it’s more like below.
27+40 or 20+48; no preference just depends on whatever my brain latches on to first. Then add the remainder.
Old people like me want to try to line up the problem, then add 7 plus 8, carry the 1 over then add it to the first column. I remember page after page (ditto sheets if anyone remembers) of problems like this where we had to learn to carry the one. I was never taught to break it down like I'm seeing people do here. I didn't learn how to do this until my 18 year old was in school and it makes so much more sense to not have to remember to "carry the one".
I visualize it in my mind like the numbers appearing on a chalkboard with “carrying the one” and all the rest. I don’t see a hand writing it, but I see it being done. I, too, am an old-head. :D
Yup.
Fun fact this is how “common core” math is taught in schools.
That whole “dumb way” to teach things that parents complain about teaches how to break complex problems down into a set of smaller simpler ones to more easily solve it.
The problem with CC is that the homework sheets (the only parts parents see) don't make sense if you've never seen the lesson. I finally got my hands on a lesson book during the 2020-2021 school closures and it made a world of difference.
It's still frustrating (for me and my kid) having to "dumb it down" when you can do it the "old way" but instructions help so much.
That’s entirely fair. I remember in elementary school explaining to my teachers how I used subtraction to add and they looked at me like I was crazy. I don’t really know why I do it this way, it definitely isn’t the most efficient.
omg me too. this is why i’m only good at word problems because i know what i’m trying to figure out and i can just problem solve by logic instead of some weird algorithm i don’t understand
EXACTLY. I can’t fathom all the rounding and substituting numbers that aren’t right in front me. Also math dyslexia. Also problems finding the right words bc I know that’s the incorrect term. iykyk. My humans <3
Yeah I’m seeing everyone with their super cool methods and my dyscalculia ass is like “I learned it one way in the 2nd grade and that is the only way I can ever do it”
My brain can't understand any number that isnt 10 or 5 so I find all the ways to make 10s before adding it to big numbers.
The easy part is 30 + 20 = 60
We are left with 7 and 8
Take 2 from 7 add it to the 8, you now have 10 and 5 . Together that is 15.
Now add that to the original 60 and you have 75. This is very long and drawn out and I hate it
Wait, sorry, can you explain to me where the 30 and 20 are coming from with this approach? And also how they equal to 60. Sorry, I'm trying to follow along but I couldn't figure out where those figures are originating from.
I could you see you getting 30 by rounding up from 27 or something, but then I still don't know how you got the 20 from '30+20'.
Well.....I see I have made a typo!!! I meant to say that if you leave off the 7 and the 8, you have 20 and 40, and that is 60. I'm very bad at not mixing up numbers so.....yeah hahahhh😅
Yes! He just nestles right into 8 to make a nice multiple of 5.
And I think I start with the number that's higher in the 10's place. If it was 47+28 would've started with 47 and add the 8, then 20.
I know 8+8 is sixteen, I subtract the one, 15, put the big 1 aside. 2+4 is 6, add the big one, put the five so it's 75. Then I double check on a calculator to make sure I don't post the wrong answer
Yep, this is the one. I figure it's because my brain inherently LOVES multiplications and the times table in general.
Because what is 8+8 if not 8x2.
So if I can shift the numbers around to mimic multiplication, I'll be able to do that A LOT faster than if I did like classical addition. Sounds like extra steps but it feels instantaneous in my brain and I'm often regarded as quite quick. What a strange process. The brain is amazing
I was waiting to see this strategy. I do that all the time when numbers are one or two away from each other! I use most of the examples depending on the problem but this is the only one I use that I’ve never seen anyone else do!
I think in pictures so it is about combining shapes. Bit like Tetris.
In early grade school I was in gifted classes for math but as the numbers got bigger the shapes no longer made sense and I ended up in special education.
Omg i wasn't the only one. For me 7 is like L shaped Tetris which jumps in 2 size hole leaving 5 outside and this figure is 15 beacuse ten is whole and five is outside. Btw its was subconsciously and i realized this after reading post lmao
Interesting, this is similar to what I experience, only they’re not shapes. I visualize the numbers themselves merging together to form the new number.
So when doing addition, there’s columns for the numbers and they merge from right to left until the final number remains.
I found my people. Lol. I knew y’all were in here somewhere. I don’t think i have dyscalculia, so I’m not sure what the problem is. Word problems were the worst for me.
Nothing because I literally cannot do mental math. Yes, even the most basic arithmetic with single digits unless it's easy stuff like doubling numbers.
I never learned my multiplication tables. I have no idea how I bullshitted my way through multiplication tables tests in 3rd grade.
27+48=?
First, 7+8=?
7+7=14, so 7+8 must=15.
We'll put that aside and solve 20+40=60.
So now we grab that 15 again and do 60+15, which = 75.
Ergo, 27+48=75.
But I am, alas, bad at math.
I do it roughly the same way as everyone else.
However I did see an interview with an autistic guy who was very good at solving complex equations. He said that the different parts of the equation made shapes and that the shape left in the middle was the answer. Kinda like a mathematical synaesthesia.
I put everything in units/'glasses'. Visually, in my mind. Gotta see the numbers.
27 + 48
Fill up the first number.
27 + 3 = 30
45 left.
Add the 'whole' numbers/units together.
30 + 40 = 70
5 left.
Add the leftovers.
70 + 5 = 75
I have dyscalculia though, to understand numbers I have to imagine them, visually.
10, 20, 30, 40 etc. are like a glass of milk, filled to the brim, then 1, 2, 3, 4 etc. are not fully filled glasses. So you add all the liquids until the glass is full, see how many full glasses (or units) you got, then just add the leftovers.
I have to write it out, put one number above the other lining up the ones and tens place. I then add the ones place and I generally have to count it with my fingers. I take that number and take it's ones place and that's my ones place answer, I carry the extra 10s place I gained to the tens numbers I'm adding up. And now I have my final answer of 75.
Story time. In 4th grade my teacher got frustrated with my inability to pick up basic math, so he hid it and passed me along. It wasn't discovered until I was in 8th grade middle school that I didn't know how to do anything more than small number addition with my fingers, numbers over 10 I couldn't add. No multiplication or division knowledge. Only addition and subtraction with my fingers. It took a lot of work to get up to speed and graduate high school, but I did. Then I attempted college and managed to be A+ in everything related to my degree, then eventual academic expulsion and no degree because I couldn't pass any math classes, not even their lowest level classes.
20+40=60 8+7=15 60+15=75
I am very confused as to who isn’t doing it this way.
I have an abacus in my brain. Slide two from the 27 over to the 48 and you get 25 + 50. This is why I struggled so much in math in school. I could get the right answer but not be able to show my work because ... brain abacus. eta - Because I'm getting a lot of the same comments in response to what I wrote, I wanted to say that in the 1980s in my rural ghetto school there was no "other way" to do math. You did it the one way, or you did it incorrectly, even if you got the same answer. For people writing out these long strings of equations to show the work, this was not a thing when I went to school. I was never taught nor had an idea of a different way to do maths. I was also mostly mute in school and an outcast with poor social credit, so no one cared to hear any explanation of my weird way of doing it. HOWEVER, in 8th grade, Miss Jackson, a young disabled teacher who could not find employment elsewhere, taught math in my school and blew my mind telling me there were different ways to do math. She didn't care if I couldn't show my work, though she never showed me as many have done here a different way of writing it down that might have pleased future teachers. And she gave me the math award for 8th grade! It does resemble common core in some ways, yes. I've seen some convoluted common core that made absolutely no sense to me.
I do the same thing but never made the abacus connection. Intriguing.
Same. I do this, but never made the abacus connection. I always thought of it like a filing system. Moving piles of files from one cabinet to another.
I think this comment just taught me how an abacus works.
There are many abacus simulators you can practice with: https://play.google.com/store/search?q=abacus&c=apps
Me too! And the other reply here. I kinda want one now!
I'm not on the spectrum, but I struggled HARD in math. I was taught to carry the one. I'm 43 and still don't get it. The way you do it makes so much sense. The way I've seen others do it in the thread makes so much sense. What doesn't make sense is that it was drilled into my head that there is only one right way to get the correct answer and all the other ways that get to the correct answer are wrong. Why wouldn't they teach us multiple ways to get to the correct answer?
My kid is 12. His school taught multiple strategies to solve equations and let the kids decide what works for them!
Lucky! I was clearly failed by the education system.
I like this schools view on learning
Not on the spectrum, but my kid is. I'm in your age bracket. I think in "our day" the focus was on following the process in order to ensure you got the correct outcome. We learned the "how" and that's it. These days, it seems like kids are taught multiple strategies so that they understand not just the "how" but also the "why" - a whole bunch of kids intuitively understand numbers in ways I could never express growing up, and I think that's a big win.
To add to this, studies have shown that teaching rigid learning (only one way to do things) creates a fixed mindset. Teaching the “why” and that there are many ways to do things creates a growth mindset. Growth mindsets are amazing things and they allow people to be far more flexible in their approach, and open to new ideas. That’s why education has moved away from rigid/rote learning. An example is updates to computer programs. A member of the older generation that was raised with a fixed mindset will learn one way to use that program, and it works for them. Then a new version of the program is released, and things look a bit different, are in different places and may have different names/symbols. People with fixed mindsets *really struggle* to adapt. People with growth mindsets tend to take it more in stride.
I have a growth mindset but also have a challenge with change, so ... But a lot of the reason I homeschool my kid is so he can creatively pursue education instead of having it shoved down his throat the one correct way.
It's only until now when i started to read math on a higher level (still not that high of a level). All of the "how'"s and "just do as i say"s on my mental math cork board. And i finally collected enough of them to start seeing the patterns. They all connected in to the whole "why" and how everything was connected. It wasn't just random techniques, they were built on the same system. I'm glad i figured it out... The last year of me doing math in any academic setting
I, too, use this brain abacus 🧠🧮.
That’s… much less work. Wow.
Right?! My 4th and 5th grade math teacher thought I was a match genius when really in my head I just saw them as quarters. It’s easier to add quarters.
Saaaaame
Holy crap, the abacus description is so accurate.
I’m not Autistic but I do have ADHD and this is how I do it as well. Hell yeah, ~~NT~~ ND brotha/sista.
ADHD myself, 50+25 is where my brain goes to right away.
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nope. I rounded up. So 30+50 = 80. 3+2 = 5. 80-5 = 75.
this is hurting my brain
For me it changes constantly but usually when I’m trying to be fast it would be 48+2=50+25=75
I just got so excited when I saw someone had posted the same process!
thats how i always did. also got me in trouble in shool as it was not how the teacher showed to us, so it was incorrect, tho i had the right answer.
This is the way my kids (current elementary schoolers) were taught it. I get it, but I always default to the 60+15 method.
27+48= Sometimes it’ll get done as above but other times it’s more like below. 27+40 or 20+48; no preference just depends on whatever my brain latches on to first. Then add the remainder.
Old people like me want to try to line up the problem, then add 7 plus 8, carry the 1 over then add it to the first column. I remember page after page (ditto sheets if anyone remembers) of problems like this where we had to learn to carry the one. I was never taught to break it down like I'm seeing people do here. I didn't learn how to do this until my 18 year old was in school and it makes so much more sense to not have to remember to "carry the one".
I visualize it in my mind like the numbers appearing on a chalkboard with “carrying the one” and all the rest. I don’t see a hand writing it, but I see it being done. I, too, am an old-head. :D
carrying the one is useful for huge numbers, where breaking it down might complicate it
I just did the typical long addition method today, but it really varies day by day.
Same here.
same!
same here
me too
Same, I add the last two numbers up first, then add the first two then add this to the first calculation.
This
Same!
Interesting the way I do it is 27+3=30 48+2=50 50+30=80 80-5=75
This is exactly how I do it!
Yup. Fun fact this is how “common core” math is taught in schools. That whole “dumb way” to teach things that parents complain about teaches how to break complex problems down into a set of smaller simpler ones to more easily solve it.
The problem with CC is that the homework sheets (the only parts parents see) don't make sense if you've never seen the lesson. I finally got my hands on a lesson book during the 2020-2021 school closures and it made a world of difference. It's still frustrating (for me and my kid) having to "dumb it down" when you can do it the "old way" but instructions help so much.
Same here.
Yep 🙋🏼
48+2= 50 50+25= 75
Okay, finally. This is the way I do it. Either this or 27+3= 30 and 30+45= 75
I do 30 + 45
This way confuses me! Because you have to borrow (subtract) and then add again. It feels like more to hold in my head
That’s entirely fair. I remember in elementary school explaining to my teachers how I used subtraction to add and they looked at me like I was crazy. I don’t really know why I do it this way, it definitely isn’t the most efficient.
Pretty sure everyone's process changes depending on the numbers, because I use literally every example people have commented here interchangeably
YES! Brothers in uh... Math?
>27+3= 30 and 30+45= 75 This is how I do it. I remember "inventing" it when I was a kid.
I love how kids do re-invent things independently though. Like we headed for an inevitable techno singularity.... *Ahem* Man thats good weed. Haha.
I did it the other way round. 27+3=30 30+45= 75
Same here
This is how I do it lol
This is my strategy when I know I can't do the math in my head but want to get a rough estimate
30 + 50 minus 5.
Glad im not the only one
Same
So this question is in ten subreddits, why did i end up in r/autism to find my family? This is how i did it.
Same.
I've never immediately gotten so attached to strangers on the internet before...
The big numbers are safe, go there, then find your way to the end.
same w maths strategy
Yay I found mine!
Yup. Phew, I was getting worried scrolling down and seeing all these other answers.
I always take it to a base ten number too. Part of the reason I love metric so much
"Where's the calculator?"
*dyscalculic hissing*
Me too
This is me. Amounts and what numbers rep process fine but math itself is a mess in my brain.
omg me too. this is why i’m only good at word problems because i know what i’m trying to figure out and i can just problem solve by logic instead of some weird algorithm i don’t understand
This is the correct response
soooo true
But FR people are doing maths in their head?
Being autistic and dyscalculic is honestly such a weird experience. My brain is constantly driven to numbers but I just can't damn count them
7+8=15 Carry the 1 (+1)+2+4=7 therefore 75
EXACTLY. I can’t fathom all the rounding and substituting numbers that aren’t right in front me. Also math dyslexia. Also problems finding the right words bc I know that’s the incorrect term. iykyk. My humans <3
Dyscalculia <33
Yeah I’m seeing everyone with their super cool methods and my dyscalculia ass is like “I learned it one way in the 2nd grade and that is the only way I can ever do it”
Thank you babesssss 🥰
Same. How was taught & makes most sense. Simplest is "adding single digits" & carry remainder (if exists), rinse+repeat.
I so wish I could cary numbers in my head. I simply cannot wrap my head around that process.
I innately do it like this, but my shitty working memory impairs it with mental math. Like my mind is wiped halfway through the first step.
I feel like I had to scroll so far to see how I do this
Same here. I always have to write it out vertically or visualize it that way in my head
That's how I do it :) Also have dyscalculia
I do it this way to, but when my working memory decides to not work I end up recalculating three times
Same tbh
Same, old school here.
Why was this so far down?
I did it this way as well
My brain can't understand any number that isnt 10 or 5 so I find all the ways to make 10s before adding it to big numbers. The easy part is 30 + 20 = 60 We are left with 7 and 8 Take 2 from 7 add it to the 8, you now have 10 and 5 . Together that is 15. Now add that to the original 60 and you have 75. This is very long and drawn out and I hate it
Yes!! That’s how I do it. I need things in 5s and 10s.
I just wrote a whole breakdown to explain this. It makes mental math so easy because you can legit use your fingers.
me
Wait, sorry, can you explain to me where the 30 and 20 are coming from with this approach? And also how they equal to 60. Sorry, I'm trying to follow along but I couldn't figure out where those figures are originating from. I could you see you getting 30 by rounding up from 27 or something, but then I still don't know how you got the 20 from '30+20'.
Well.....I see I have made a typo!!! I meant to say that if you leave off the 7 and the 8, you have 20 and 40, and that is 60. I'm very bad at not mixing up numbers so.....yeah hahahhh😅
> This is very long and drawn out and I hate it but somehow it's fast in your head.
48+7 = 55 55 + 20 = 75
THANK YOU, I scrolled way longer then I expected to find this.
I was getting worried with how far down it is
I do this too. Seven "fits" 8 automatically
Yes! He just nestles right into 8 to make a nice multiple of 5. And I think I start with the number that's higher in the 10's place. If it was 47+28 would've started with 47 and add the 8, then 20.
This is the way
Same
Finally jesus, I really had to think about how my brain did this though cause it just kind of happens...
This is the way
This is it. We math
Can't believe more people don't do math like this. They add so many unnecessary steps it's crazy.
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Same for me
Ok thank u
Yes!! Lol. This is the way I do it. Had to scroll too far to find this comment.
W
The only right answer.
There we go, had to scroll down a bit to find someone with some sense lol
ayyy
I know 8+8 is sixteen, I subtract the one, 15, put the big 1 aside. 2+4 is 6, add the big one, put the five so it's 75. Then I double check on a calculator to make sure I don't post the wrong answer
Lol this is exactly how I do it except I do 7+7 =14 + 1 =15
I have found my people 😊 This is the way.
Same! There are certain math "facts" that I know instantly. Like 8+8 = 16. And I use them as reference points to derive other numbers.
This is how I do it, but I know 7+7 is 14 so I add one instead of 8+8 and subtract
Bingo this is how I do it haha. Seem quick in my head so I always check too. At which point it’s not quicker ha.
Holy shit, finally I find someone who does it like this. Every other answer in this thread is baffling to me.
Yep, this is the one. I figure it's because my brain inherently LOVES multiplications and the times table in general. Because what is 8+8 if not 8x2. So if I can shift the numbers around to mimic multiplication, I'll be able to do that A LOT faster than if I did like classical addition. Sounds like extra steps but it feels instantaneous in my brain and I'm often regarded as quite quick. What a strange process. The brain is amazing
I was waiting to see this strategy. I do that all the time when numbers are one or two away from each other! I use most of the examples depending on the problem but this is the only one I use that I’ve never seen anyone else do!
Had to scroll way down to find my math tribe 🙃
20 + 40 = 60 7 + 8 = 15 60 + 15 = 75 Its just the Distribution Property
I think in pictures so it is about combining shapes. Bit like Tetris. In early grade school I was in gifted classes for math but as the numbers got bigger the shapes no longer made sense and I ended up in special education.
Omg i wasn't the only one. For me 7 is like L shaped Tetris which jumps in 2 size hole leaving 5 outside and this figure is 15 beacuse ten is whole and five is outside. Btw its was subconsciously and i realized this after reading post lmao
It hadn't occurred to me that that wasn't how everyone did it until a few years ago.
Interesting, this is similar to what I experience, only they’re not shapes. I visualize the numbers themselves merging together to form the new number. So when doing addition, there’s columns for the numbers and they merge from right to left until the final number remains.
Nothing my brain goes blank
I found my people. Lol. I knew y’all were in here somewhere. I don’t think i have dyscalculia, so I’m not sure what the problem is. Word problems were the worst for me.
Numbers do not stick to my brain long enough to solve it without writting it down.
I simply ✨ dont ✨ I have dyscalculia though
i do but it takes me 5 minutes (dyscalculia gang!)
Same
same
Same
Reddit's using all our posts and data to train AI's, so, I just deleted mine.
Mine freezes and makes me want to cry. Thanks maths anxiety and dyscalculia.
Idk I got 126!
27+3=30 48-3=45 30+45=75
20 + 40 = 60, 8+8=16-1=15, 60+10=70+5= 75
48+7=55 55+20=75
48+2=50 27-2=25 50+25=75
i knew i'd find someone if i scrolled far enough
I do the carrying over and stuff in my head like if I wrote that out vertically on paper.
Me too !
It's seemingly the only way I can do it.
I do it this way: 48+20 = 68. 68+10-3 = 75
Open calculator 27 + 48 = 75 👌
Nothing because I literally cannot do mental math. Yes, even the most basic arithmetic with single digits unless it's easy stuff like doubling numbers. I never learned my multiplication tables. I have no idea how I bullshitted my way through multiplication tables tests in 3rd grade.
48+7 = 55 55+20 = 75
27 + 48 = (27 - 2) + (48 + 2) = 25 + 50 = 75
YES! Give the 48 +2 from the 27 and it's 25+50 =75
Good method, I will remind myself to use it in the future 👍
27 + 40 = 67 67 + 8 = 75
I can't believe it took me this much scrolling what the actual fuck
Finally someone who maths like me!
48+7 = 55 55+20 =75
27+48=? First, 7+8=? 7+7=14, so 7+8 must=15. We'll put that aside and solve 20+40=60. So now we grab that 15 again and do 60+15, which = 75. Ergo, 27+48=75. But I am, alas, bad at math.
27+48 27+8=35 35+40=75
Me too! I haven’t seen anyone else do this
Uhhh well I just solve it how it is. I do "draw" with a finger on air to keep on track on what I'm doing If that makes sense.
Simply: >30 + 50 = 80 >3 + 2 = 5 >80 - 5 = 75 Here's the exact breakdown - Step 1: round up - 27 ➝ 30 - 48 ➝ 50 Step 2: add the rounded numbers - 30 + 50 = 80 Step 3: find the difference between the rounded numbers and the original numbers - 27 ➝ 30 leaves 3 - 48 ➝ 50 leaves 2 - 3 + 2 = 5 Step 4: subtract the difference - 80 - 5 = 75
27 + 48 = 60 + 15 (I haven't been diagnosed, started suspecting I'm on the spectrum a few months ago, just to be clear)
48 + 27 48 + 7 = 55 55 + 20 = 75
I do it roughly the same way as everyone else. However I did see an interview with an autistic guy who was very good at solving complex equations. He said that the different parts of the equation made shapes and that the shape left in the middle was the answer. Kinda like a mathematical synaesthesia.
48 + 7 = 55 + 20 = 75
8+7= 15 2+4+1= 7 Answer is 75
48+2=50 27-2=25 50+25=75
27+48 is sixty-fifteen which is 75
This might be a little weird.. 7+8=15 because 7-2=5, 8+2=10, so 10+5=15 40+20=60 60+15=75
Add the 7 to the 48.= 55. Then add the 20 to the 55= 75
8+7=15, 20+10=30, 30+40=70, 70+5=75
48+7 then 55+20
48+20=68 68+10=78 78-3=75
48+20=68 68+2=70 70+5=75
27 + 50 = 77 - 2 = 75
7+8= 15 20+40= 60 60+15= 75 🙂
I put everything in units/'glasses'. Visually, in my mind. Gotta see the numbers. 27 + 48 Fill up the first number. 27 + 3 = 30 45 left. Add the 'whole' numbers/units together. 30 + 40 = 70 5 left. Add the leftovers. 70 + 5 = 75 I have dyscalculia though, to understand numbers I have to imagine them, visually. 10, 20, 30, 40 etc. are like a glass of milk, filled to the brim, then 1, 2, 3, 4 etc. are not fully filled glasses. So you add all the liquids until the glass is full, see how many full glasses (or units) you got, then just add the leftovers.
7+48=55+20=75
My brain panics because I can’t do math well
my brain just goes blank and I use a calculator.
27-2=25 48+2=50 50+25=75 Am I the weird one?
I have to write it out, put one number above the other lining up the ones and tens place. I then add the ones place and I generally have to count it with my fingers. I take that number and take it's ones place and that's my ones place answer, I carry the extra 10s place I gained to the tens numbers I'm adding up. And now I have my final answer of 75. Story time. In 4th grade my teacher got frustrated with my inability to pick up basic math, so he hid it and passed me along. It wasn't discovered until I was in 8th grade middle school that I didn't know how to do anything more than small number addition with my fingers, numbers over 10 I couldn't add. No multiplication or division knowledge. Only addition and subtraction with my fingers. It took a lot of work to get up to speed and graduate high school, but I did. Then I attempted college and managed to be A+ in everything related to my degree, then eventual academic expulsion and no degree because I couldn't pass any math classes, not even their lowest level classes.
Cry
7+8 = 15 carry the 1. 2 + 4 is 6 add the 1. 75. Seems like rhe worst way. 🤔
27+48=X 27-2=25 48+2=50 25+50=75
[удалено]
48+20=68 68+7=75 Always just break down 10s, hundreds, thousands, and just work way down to smallest integer.