*Suisei:* "Isn't it okay to just subtract 49 from 50 and then add the 1 to 78?" *Flare:* No reaction. Probably did it this way too. She passes. *Noel:* Audibly gasps and looks shocked. Had no idea *Miko:* Visibly did not do it this way *Polka:* Somehow ended up on Mars while trying to solve the equation I don't think Yagoo recruits them based on their intellect and grades...
@@JohnEvansChaoseed I guess if you view it as her swapping 78 and 50, that'd be using the commutative property. But because there's actually a subtraction in the middle, you can't actually use that property directly (it's defined for repeated application of the same operator, not a mix of them). So you _do_ gotta use the fact that subtraction is not (or left-) associative to determine that it takes priority, put (mental or real) parentheses around it, then swap (78-49) and 50. _Then_ you get rid of parentheses (they've served their role in grouping subtraction during shuffling) and notice that you can now swap 50 and 78 due to commutativity. ...Ooooor just treat subtraction as addition of negative numbers and never have to think about such things again. But yeah, seems like if we were to get technical, it was addition's commutative property and subtraction's lack of/leftness of associative
I'm _sure_ Mikochi just saw this as an educational opportunity. That's why she wrote it all out in such detail - simply to help people that struggle with those kinds of questions learn :P
Such a simple ecuation, and yet as someone who picked engineer as his career, i failed it Well, i'll be a dissapointment for a son to my father and definetely not the one to make a change to his city
Subtracting the positive is the same as adding the negative. 78-49+50 78+(-49)+50 78+50+(-49) 78+50-49 78+(50-49) 78+1 You have 78 gold. You bought an artifact for 49 gold, then sold it for 50 gold. How much gold profit did you make? You made 1 gold from selling it. (So you have 79 gold total.)
I mean, going by BOMDAS (or that fucking 'PEDMAS' nonsense that I hate), you *are* supposed to add before subtracting. So she _is_ correct if using that method.
Your mistakes are likely not realizing the 49 is negative as well as thinking that because A comes before S in PEMDAS, that addition is before subtraction. They are the same priority, so you should solve them left to right, but because of the associative property of addition, you can solve this in any order as long as you carry the signs.
P>E>MD>AS Parenthesis > Exponent > Multiplication/Division > Addition/Subtraction and always from left to right whichever comes first (so if division comes first before multiplication, division comes first. same with subtraction) Suisei's method was also correct since she technically didn't mix the order and still did it from left to right (will use square brackets to show what I did first in the equation for clarity) [78 - 49 + 50] 78 [- 49 + 50] 78 [+ 1] [78 + 1] [79]
P>E>MD>AS Parenthesis > Exponent > Multiplication/Division > Addition/Subtraction and always from left to right whichever comes first (so if division comes first before multiplication, division comes first. same with subtraction) Suisei's method was also correct since she technically didn't mix the order and still did it from left to right (will use square brackets to show what I did first in the equation for clarity) [78 - 49 + 50] 78 [- 49 + 50] 78 [+ 1] [78 + 1] [79]
I'm honestly astonished whenever I see people unable to readily solve this kind of elementary ahh stuff in their heads. ...then again I don't know any Actually PON people IRL either, so.
For that math question, once there’s no BODMAS or PEMDAS or whatever in effect, it’s done left to right. I guess Polka is still not used to that aside from Fuwawa. 😂
That's not how Pemdas works when there aren't ( ). "+" doesn't have priority over " -" and they both have the same rank. Honestly it's more important here that you can change sequence however you want as long as you don't fuck up the algebraic sign and remember to take them with the number that you are adjusting.
PEMDAS/BEDMAS gives the same priority to addition and subtraction, therefore you go from left to right, (78-49)+50. PEMDAS/BEDMAS goes in priority from parenthesis/brackets, exponents, (division/multiplication) then (addition/subtraction), you then solve the problem from left to right.
P>E>MD>AS Parenthesis > Exponent > Multiplication/Division > Addition/Subtraction and always from left to right whichever comes first (so if division comes first before multiplication, division comes first. same with subtraction) Suisei's method was also correct since she technically didn't mix the order and still did it from left to right (will use square brackets to show what I did first in the equation for clarity) [78 - 49 + 50] 78 [- 49 + 50] 78 [+ 1] [78 + 1] [79]
Suisei really out here doing ADHD math - as expected of the idol that was too powerful to hire. 78-49+50 78+(-49)+50 (Subtraction is just adding a negative number) 78+(-49+50) (Commutative Property of Addition - you can do addition in any order) 78+1 79 Polka was very close to Suisei's solution, only making one mistake: 78-49+50 78-(49+50)
Associative property, not commutative. She did also use the commutative property after associativity, though, to rewrite to 50 - 49 instead of -49 + 50.
![Iroha Startled When Suisei Appears Next To Her (Iroha & Suisei /Hololive) [Eng Subs]](http://i.ytimg.com/vi/9uxCG0ZI6ww/mqdefault.jpg)
![Iroha Startled When Suisei Appears Next To Her (Iroha & Suisei /Hololive) [Eng Subs]](/img/tr.png)
Miko's 3D frowning face will never not be funny
^
Sui-chan: I gotta graduate 🎓
Miko: Bruh that ain’t happening.
Miko "I won't let you graduate"
what we need to hear after that word is said ^_^
*Suisei:* "Isn't it okay to just subtract 49 from 50 and then add the 1 to 78?"
*Flare:* No reaction. Probably did it this way too. She passes.
*Noel:* Audibly gasps and looks shocked. Had no idea
*Miko:* Visibly did not do it this way
*Polka:* Somehow ended up on Mars while trying to solve the equation
I don't think Yagoo recruits them based on their intellect and grades...
((Flare mentions later after Noel that she also calculated it the normal way))
Smart people aren't entertaining
Wait, Suisei's solution is actually legal move ?! ...
Isn't the legal solution is from right to left ?! ...
@@misuzusatou4001 Which is corraborated by the tentative answer followed by a tiny question mark
yes yagoo recruit based on comedic talent
Fuwawa and Mococo older sister😆
She really is Fuwawa's sister after all, lmao.
The smartest person here is Noel-san
*Noel surprised pikachu face* 😮
"I won't let you graduate." - said by Mikochi who can't even graduate from Holo Kindergarten xD
So proud of Miko 🥲
35p´s are more like 🤔
Hahahaha!
Suisei talks about graduating this year
Everyone: blood runs cold
I think the easiest way to do this....
78-49+50
= 78+50-49
= 78+1
= 79
_"Change your perspective."_ - Sui-chan, probably.
I don't like moving numbers around so I did this: 78+(-49+50). Basically the same thing.
@@the8thDwarfonly if you write it out. I'm pretty sure adding negative is harder to visualize for most people
@@Yanaro-pi8pt anyone who finish middle school should be able to do that if they actually trying in school
@@Yanaro-pi8ptit's not adding negative, the number itself was a negative number.
@@Yanaro-pi8ptit's actually not when the numbers are -49,50 ofs you know it's gonna be 😮1
Man i LOVE Mikochi frown lmaoooo its the best all her expressions are amazing but the frown is the best 😂😂😂😂😂😂😂😂
It's must be hurt to get called stupid by Miko 😂😂
Miko: there will be no graduating, we're in kindergarten forever.
2:39 Miko protecting all the hoshiyomi hopes and dreams. ❤❤❤
Suisei: "I have to graduate high school this year"
Yep, 6th year in a row in 12th grade is getting pretty embarrassing. Thanks God she can sing! 😉
Suisei has a mond that fits Tetris blocks in split seconds, im sure she immediately saw that rearranging the problem would result in a faster solution
This prove that Polka is the real FuwaMoco elder sister.
I remember that Polka and Nene scored the lowest in Choco-Sensei's test... of course, not as low as Aqua.
78-49+50 is the same as 78+1, since it's irrelevant to know the result of 78-49 in the first place.
just turn the 49 into a negative number and do it in whatever order after that
After taking enough math classes I do that by default. It took me a second to realize how Polka messed up
Amazed that only Suisei reaslied thats how to solve it easily, I thought it was blindingly obvious anyway
Flare didn't react to it so maybe she knew that too.
Flare's laugh is so hearty... I love it so much, lmao. xD
Polka's error was to separete the - from the 49. It's -49+50, which is the same as 50-49.
I would just like to take this opportunity to praise my Polka for getting a number for the answer, and not “Madagascar”. So smart.
Is Suisei really the only person who remembered the commutative property of addition and subtraction?
i think they were all just trying to solve the first part and didn't look beyond that.
Technically I think it would be the associative property, but apparently she was!
@@JohnEvansChaoseedShe used both.
@@JohnEvansChaoseed I guess if you view it as her swapping 78 and 50, that'd be using the commutative property. But because there's actually a subtraction in the middle, you can't actually use that property directly (it's defined for repeated application of the same operator, not a mix of them).
So you _do_ gotta use the fact that subtraction is not (or left-) associative to determine that it takes priority, put (mental or real) parentheses around it, then swap (78-49) and 50. _Then_ you get rid of parentheses (they've served their role in grouping subtraction during shuffling) and notice that you can now swap 50 and 78 due to commutativity.
...Ooooor just treat subtraction as addition of negative numbers and never have to think about such things again. But yeah, seems like if we were to get technical, it was addition's commutative property and subtraction's lack of/leftness of associative
Dang Fuwawa catching strays hahaha
Polka nee san
Suisei: "I have to graduate high school after all!"
Wasnt she too old al-
pls dont say anymore 🤣
CRINGE!
She Said The G Word!
Polka???
Miko is so smart! She can do math and won't let Suisei graduate... Miko is gonna graduate tho, not a baby anymore! xD
Miko frowning at math is instant serotonin lol
Polka: 78-49+50=-27
Gura: Finally, someone who understands me
Yeah, I do it like Suisei for that math problem
great shiraken collab!
polka... please.
I also do it the same way with Sui. lol I'm surprised not many think of it that way
1:49 omg for real, miko saying that, there is no more shame than that 😂🤣
No graduations allowed on Mikos watch
Did none of them look at “-49 + 50” and just go “oh so add 1 to 78”
I'm _sure_ Mikochi just saw this as an educational opportunity. That's why she wrote it all out in such detail - simply to help people that struggle with those kinds of questions learn :P
It's a common mistake to do the addition first without including the negatives.
I calculate things the same way as Suisei lmao
That "Oh?!" From Noel is so cute
I dont know whats more terrifying: me being bad at math or miko actually doing good
Yeah, Sui-chan has the right idea
I need more Polka translations she's so cute and funny every single time.
Meanwhile me, (pull out calculator that had been with me since middle school)
cute miko
it can't be helped .. She's THE Poruru Nee-chan
I was following BEDMAS and got the same as Polka's. ☠️☠️☠️
Looks like our of the 3 siblings (Polak,fuwawa,mococo) the youngest one got the math brain
If it is just plain straight forward plus and minus then you can move the numbers around so Suisei' method is easier to understand. aka 50-49+78
Such a simple ecuation, and yet as someone who picked engineer as his career, i failed it
Well, i'll be a dissapointment for a son to my father and definetely not the one to make a change to his city
Subtracting the positive is the same as adding the negative.
78-49+50
78+(-49)+50
78+50+(-49)
78+50-49
78+(50-49)
78+1
You have 78 gold. You bought an artifact for 49 gold, then sold it for 50 gold. How much gold profit did you make?
You made 1 gold from selling it. (So you have 79 gold total.)
Miko miko can do math ??? It’s impossible
I mean, going by BOMDAS (or that fucking 'PEDMAS' nonsense that I hate), you *are* supposed to add before subtracting. So she _is_ correct if using that method.
Polka trying to do basic math: *POPOPO, POPOPO, POPOPOPOPOPOPO*--
It's ok Miko I can't write that word either
I legit thought of pemdas here. My answer was alao supposed to be -21.
its just addition and subtraction...
even if you use pemdas, the subtraction and addition has equal priority
Your mistakes are likely not realizing the 49 is negative as well as thinking that because A comes before S in PEMDAS, that addition is before subtraction. They are the same priority, so you should solve them left to right, but because of the associative property of addition, you can solve this in any order as long as you carry the signs.
P>E>MD>AS
Parenthesis > Exponent > Multiplication/Division > Addition/Subtraction
and always from left to right whichever comes first (so if division comes first before multiplication, division comes first. same with subtraction)
Suisei's method was also correct since she technically didn't mix the order and still did it from left to right (will use square brackets to show what I did first in the equation for clarity)
[78 - 49 + 50]
78 [- 49 + 50]
78 [+ 1]
[78 + 1]
[79]
Polka and Miko really breaking down the stereotypes of Asians being good at math every day, such brave women
I think Polka used PEMDAS that's why she got -21 .. where you need to add first before you subtract
No, it's PE(MD)(AS). MD and AS are done left to right.
P>E>MD>AS
Parenthesis > Exponent > Multiplication/Division > Addition/Subtraction
and always from left to right whichever comes first (so if division comes first before multiplication, division comes first. same with subtraction)
Suisei's method was also correct since she technically didn't mix the order and still did it from left to right (will use square brackets to show what I did first in the equation for clarity)
[78 - 49 + 50]
78 [- 49 + 50]
78 [+ 1]
[78 + 1]
[79]
While we have most of the girls are -pon- cute but we have Suisei as anomaly here 😂😂😅
i mean, they are sisters.
what ? suisei is that young ? i doubt it
Okay, so I get Polka failed order of operations (she did 78 - (49 + 50)), but how did she get 78 - 99 = -27?
79
Just +1 it.
also works if you do this: 78+(-49+50) > 78+1= 79
is suisei the smartest out of hololive talents?
I'm honestly astonished whenever I see people unable to readily solve this kind of elementary ahh stuff in their heads.
...then again I don't know any Actually PON people IRL either, so.
Polulu Abyssgard 😂
I think by BIDMAS rules, Polka is the correct one here, even though I think BIDMAS is stupid
Nope. All order of operations lead to 79.
For that math question, once there’s no BODMAS or PEMDAS or whatever in effect, it’s done left to right. I guess Polka is still not used to that aside from Fuwawa. 😂
The result is the same with BODMAS/PEMDAS!
@@nathan5160
Yes! Left to right! In Polka’s mind, she decided to add first before subtracting somehow. 🤔
Sasuga shiraken the strongest group ,unlike dead usaken
If we follow PEMDAS then it would be 78 - (49+50), 78 - 99 = -21. I think Polka is correct here, even if she kinda did write -27.
There were no parentheses
That's not how Pemdas works when there aren't ( ). "+" doesn't have priority over " -" and they both have the same rank. Honestly it's more important here that you can change sequence however you want as long as you don't fuck up the algebraic sign and remember to take them with the number that you are adjusting.
Nah with PEMDAS it would be 78 + (-49+50) or 78 + (50-49) to give it the more intuitive direction.
PEMDAS/BEDMAS gives the same priority to addition and subtraction, therefore you go from left to right, (78-49)+50. PEMDAS/BEDMAS goes in priority from parenthesis/brackets, exponents, (division/multiplication) then (addition/subtraction), you then solve the problem from left to right.
o boi
American comedy
P/B>E/O>M=D>A=S
don't skip school too much, kid
If you use PEMDAS then polka would be the correct one
No, it would still be 79.
P>E>MD>AS
Parenthesis > Exponent > Multiplication/Division > Addition/Subtraction
and always from left to right whichever comes first (so if division comes first before multiplication, division comes first. same with subtraction)
Suisei's method was also correct since she technically didn't mix the order and still did it from left to right (will use square brackets to show what I did first in the equation for clarity)
[78 - 49 + 50]
78 [- 49 + 50]
78 [+ 1]
[78 + 1]
[79]
Suisei really out here doing ADHD math - as expected of the idol that was too powerful to hire.
78-49+50
78+(-49)+50 (Subtraction is just adding a negative number)
78+(-49+50) (Commutative Property of Addition - you can do addition in any order)
78+1
79
Polka was very close to Suisei's solution, only making one mistake:
78-49+50
78-(49+50)
Associative property, not commutative. She did also use the commutative property after associativity, though, to rewrite to 50 - 49 instead of -49 + 50.