PAPER CALCULATOR

[darthbolasr]

what about 20 : 0

[ipadkeyboard13]

Lol it works...time to brag to my friends!!

[natedw82]

it dosent work!:(

[roytarek]

thumbs up if you write 1 as a stick too!!

[wiepechundschwefel]

@roytarek thats the "old" american way to write a 1 ;)

look at some clocks

[RUL1S88]

Wtf? Why do you write the number 1 like a stick | ?

[unicorntail]

@RUL1S88 seriously?

[RUL1S88]

@unicorntail

seriously what?

[unicorntail]

@RUL1S88 why u trollin on math vids.

[RUL1S88]

@unicorntail

I'm not trolling. Just look at the way he writes numbers. When he wanted to write 123 * 321 he wrote: |23 * 32|

[unicorntail]

@RUL1S88 lots of people do this, go back to school.

[RUL1S88]

@unicorntail

I haven't seen anyone in my school writting 'one' as a stick. Not even a teacher, no one.

[09205479428]

This supports that numbers are parallel events , multiplication is an expression of common events between parallel events.

[congchuavideo]

Many people watch your videos, why not post your link to EZHUH.COM get paid for the people watch and make videos.

[brettefantomet]

Cool!!!

[SomeWeirdFreak]

Bit 'whoop.' Let's see a proof!

This trick is cool though.

[pulzlos]

GENIUS :D

[ZeRo10901913]

totaly amazing

[allukoira]

i think it's quite hard to count thos numbers which are not integers..

there is a better way to count on paper. but you need to know how to count the

1-10 multiplication tables

[PyroManiaczKJD]

kinda like latic....or how ever u spell it....i do the boxes

[KopyWut]

Must.... Remember... trick...

[SALAHADDlN]

this is amazing

[iggie200]

I don't know much math at all..and I dropped out of high school.

This trick fascinated me:)..I was trying to figure out higher numbers..it's 'somewhat' the same system..but then certain rules apply...I found out that with numbers over a million..that you have to cancel out zeros or add the same numbers together

Example;

50 30 28 22 (50+30 (cancel out zero = 8) then 2+8 instead of dragging the other 2 to the 8..you use it for something else..so (2+8 = 10-1 = 9(Except you can't use the zero)

[MrNoobWarrior]

39 people got a E in there maths report

[wiiareonfire]

@MrNoobWarrior You must've gotten an E in your English report...



[MrNoobWarrior]

@wiiareonfire  nope i got better than that

[xpto41]

omfg xD this is a great shit lol

[TheNiels17]

cool



[TheGrayStars]

That is one weird 9 at the end.

[brentpieterse]

ahum how about 1 + 1?

[Nemilime]

@brentpieterse It's only multiplication.

[Knezicdex]

Nice



[0000infinity0000]

How do you represent decimals?

[1uen]

@0000infinity0000 You obviously do the same thing as normal multiplication, multiply the decimal place values.

[Dradley2015]

This is kind of weird.

[ikyokyo]

This is very convinient in multiple math under four digits, but if your number is very big, the lines can easily mixed up and you will got wrong unswer. Those electric calculators are much "stupid" because they are only plus or minus more times.

[CHIZ4]

i think ill just stick to a regular calculator

[Phr33Pur3]

I see what you did there.

[taizoy0725]

Roll Paper Calculator for iPhone is here

[ldreiiyeiistk]

Practical use: mathematics exams where calculators aren't allowed.

[DoctorEvazan]

Anyone who actually understands multiplication should be able to figure out how this works.

[tlautner211]

kool iguess?

[floodgateman]

plain curiosity not practical in real life...but nice you figured this out...can be a good show in children's birthday parties!!! lol

[MrHacker3000]

holy crap! haha lo does this works on any arithmetic problems??

[TheRingposix]

Good science to their own use

[TheRingposix]

In the real world, it seems as if useless, but the company does not have a computer, you can use your method to calculate, you are really a genius, really complex left you with.

[apokkalyps]

how do you draw adding the 1 to the 8? I'm confused?

[Abaa48]

420 x 1080 I tried it and id carry the extra two 0'. after 6 which sums to 453600

[elissa342a]

not useful at all in real life but very interesting and fun

GENIUS :)

thanks

[3gz0n9991]

haha nice but what happens when u got a test . .you don't have that much time ::(

[quexalcoatl]

I remember using this in school and the teacher wondering what the hell all the lines were.

[boiledhooker]

You shouldn't do math in pen.

[arjay0204]

i already know but thx

[retardedmonkey2319]

36 x 14 doesn't work

[PucK3001]

@retardedmonkey2319 yes it does. did you carry the 2 over to the 18 and then carry the 2 from that new number over to the 3?

[retardedmonkey2319]

@PucK3001 i was being retarded sorry (:

[Lopez568257]

@retardedmonkey2319 Really?

[retardedmonkey2319]

@Lopez568257 Yeah i was being retarded sorry

[razzark666]

nice trick but I did each calculation in under 10 seconds just by the normal way...

[mercnet1980]

This is the basic way people do it in their heads, only they visualize it in the minds eye.

[S618K]

I've never thought of such an interesting idea. This is stunning! Thanks for sharing :-)

[irka271981]

so do 999 x 999 lot of counting...;/

;);(;)

[Wingman2517]

@irka271981 you fail at math..

[juicyjay80]

haha i know right?

[sciencoking]

no, actually that´s just 1000x1000 = 1 mil

then subtract 1000 and you got 999k

subtract 999 and there we go: 998001

[PaperclipGames]

@irka271981 To calculate 999×999 way easier is to simply use 999×1000 - 999 = 998001. Or, as a matter of fact, a² = (a+1)² - 2a - 1.

[zw0ecool]

@irka271981 ahhahahaahha

[VILABACKUP]

@irka271981 that would be 1000 x 999 - 999 = 999000 - 999 = 998001

[marcool108]

@irka271981 its actually really easy to do, but uses a completely different method. just find the difference between the two numbers and their nearest log base ten, which in this case is 1000. the difference between 999 and 1000 is -1 so you add this to the first number. 999+(-1) = 998. bcoz we're usin log base 10 of 1000, which has 3 zeros, we have three digits to go. now multiply both differences together. -1 * -1 = 1. To three digits, thats 001. The answer is 998001. Check out glad2teach!

[nelsonkbarker]

@irka271981 being good in calculations is actually apllying a variety of tricks

in this case id use this calulation:

(1000 - 1 )*(1000-1)=1000000 -2000 +1=998001



[sakonpure6]

@nelsonkbarker where did you get the -2000 and +1 ??

[charrycharry]

what's this called? i'm sure there's a name.

[megahunterkiller]

at my school they called it "luetce multiplucation" (Hint)i know i spelled wrong

its the green thing that is in salads

[charrycharry]

wow

[deaddevil32]

my maths teacher made us watch this last year lol

[dlite922]

@deaddevil32

at the end of the class right? Just to piss you off.

[deaddevil32]

yep ... D:

[maldoandresmaldo]

to slow just do it the old fashion way

[kiminokami]

This is MUCH faster, even with him teaching us!

[nala6lala]

whoa. that is cool :)

[mooman219]

good tool

[st3w132cki3l]

fffffffuuuuuu needed this in high school...

[jvclark2]

Just erase lines

[ELP0eTa]

:o incleible

[skerven]

Nice job Foiling the Answer....

21 * 13 = (20 + 1) * (10 + 3) =

200 + 60 + 10 + 3 = 200 + 70 + 3 = 273

The intersections on the far left represent the most significant digit, the ones in the middle are just that, and the one on the far right is the lest significant digit.

The intersections you make are just a reduction of multiplication to mere addition.

Don't forget to carry the ten's digit when doing this, lol.

[stepz7]

wow never knew you can multiply a number by distributing it haha

[Tonymafio]

Very nice

[lobox12345]

Oh my Goodness

[lirahlaine]

thats sad ,i answered every sum in my head instantly,using a calculator of any kind slows the brain from lack of use,the world is going downhill fast.

[69mattman69]

eat a dick

[cortezthekiller512]

They are not sums, they are products you freaking idiot.

[PerfectParasite]

Seems easier to just write out the math.

[helpadelpa]

looks cool. But this is basically a normal multiplication on paper. Instead of numbers you use the actual amount of lines representing it and instead of multiplying you count line-crossings. Still I have to admint that it's kind of elegant ;)

[dkrocks]

Very interesting, but I personally think you should have stated where you got this from in your comments.

Shout out to Stumble Upon, which is how I found this.

[Ancplaehh]

haha same way i found it. time to waste more hours on this.

[sk8rdman]

srry, man, but that was pretty lame... show me a vid w/ numbers higher than 3, then tell me this is a quick and easily efficent way of calculating.

sure, it works and that's kewl and all, but I was very unimpressed. :(

[msbrun02]

Lol why do you need to see a video with numbers higher than 3? By showing 2 then 3 numbers; it shows you that its possible with more... Personally, I think its a pretty good trick!

[sk8rdman]

I understand that it will work with more than 3 digets. by saying numbers higher than three, I ment numbers higher than three. such as 4 or 5 ect. even so, I'm sure it'll work, but it's still very in efficent. that's my point. as stated in my first comment.^^^

[lextasy88]

inefficient or not, it still works. the point of this video is not to show it's efficiency but to show it's effectiveness.. that this trick actually works is pretty cool

[appleseed101]

this has to be the worst meaning the slowest way to calculate that equation...

[ozzirt]

But an interesting demonstration never the less.

[XDGuardian]

Well in my class no one can use a CALCULATOR but the teacher.

[soylentgreenb]

"Well in my class no one can use a CALCULATOR but the teacher. "

That's because you're just learning basic arithmetic.

When you get to learn about functions, equations, derivatives, differential equations, calculus, linear algebra, statistics and so on it's simply not interesting to test you on arithmetic.

[hahasimkid]

In middle school they always told us to work the equations out in our heads. Now it's all about using a calculator and log functions, cos sin and tan, etc.

[soylentgreenb]

Most calculators don't really help you manipulate equations, they just take care of the uninteresting arithmetic.

Understanding what the problem is and setting up the equations is itself often the hardest part of interesting problems; the kind you find in the real world.

[Chinfrimm]

Exactly, I study in an Engineering Course, I have a crapload of Maths to deal with, Physics too.

I'm my mathematical specific subjects, such as Algebra or Calculus. We never do operations that require a Calculator, I mean, everyone knows what Pi times Three is.

What I mean is that the difficulty is not in the Arithmetics, it's in the thinking involved in getting the right equation.

[polerawkaveros]

I know, isn't that some bullshit? That pissed me off so much.

[XDGuardian]

Dude this isnt 1st grade u cant use a CALCULATORS in a real class.

He is just showing us how to do this and your the one who clicked on the video.

[YoYoninja]

Actually in a lot of real math classes you are allowed to use calculators. Sometimes encouraged to, depending on the class.

[riellevobi]

I liked it. I think it's very cool. Math is strange to me and I would love to know why something like this works.

[JoeyDLP]

why? stupid

[windatekili]

stupid it would take a lot of time to count something

[tennisdrummerboy]

I'd say the biggest fault is that any digit past 3 is going to make the thing too complicated.

[tudyfruity1234]

i dont get it........and those problems i could solve in my head...

[aso159357]

yes it does take out the zeros first then when ur done put back the same amount of zeros

[PwNStaaRR]

wtf is the point of this

USE CALCULATOR

or, long multiply >_>.. u dont need to do 4323 x 3133 in a maths exam without a calculator......

[carltonbcool]

when you are multiplying big numbers. 243 x 364...then it is easier to do this.  but for numbers in the 10's then i just do it in my head

[vinnyphillips]

doesnt work for zeros

[aseretkavon]

OMG coolest thing EVER!

[MBecerra2001]

arabic numbers were not the solution to solve abstraction?

[themooddisorders]

who else went 260+13 and skipped the vid?

3 stars

[LilReaper1010]

the paper will burst into flames.....

[eruption420]

lol

[LilReaper1010]

hey everyone thanks for all of the thumbs up! love to keep ya laughing!!

[asianguy8880]

thats cool but it seems easier just to multiply the normal way

[dontgiveafucker]

And how to be when multiplying, for instance, 5 digit numbers? There's has to be some technique.

[swiimgfreek]

that is cool way to do ur multiplying

[skiiboop]

suyamu, if you really need a calculator to compute 10 x 101. you truly are a dumbass.

[Mixmasterpancake]

uh how bored wer you?

[jdhikl]

does this only work for multiplication?

[bichonfreak453]

thats cool, but i dont think anyone has the time anymore to actually do that =\

[Suyamu]

try calculating 10 x 101 with this calculator ;)

[tortur3dsoul]

if works if you treat the zeros as imaginary lines and use then as place holders, so wherever a column of zeros line up you place one zero, regardless of the amount of zeros :), and that's how you would calculate 10x101

[perfectlyXimperfect3]

woah.

that's awesome.

[Asianised]

how did you find that out?

[xXZarlachXx]

why dont pick up a NORMAL calculator and get the answear in 1sec

[Brawndiculous]

SCIENCE.

[dimejitunji]

dumbass its just a differnt way god

[LittleBigPoet]

too hard

[camalok]

Pretty cool ..

[starwarsgeek8]

woah that's awesome!

[Ranie9393]

O LAWD

[jiffy973]

oh hott slam

[emuman4evr]

I hated latice. So I did it the traditional way.

[monkeychunkey224]

the person that figured this out must be a total genius

[toshineon]

There is a deffinately easier way of doing this, an electronic calculator ;)

[123lilpimp123]

umm... i think i can solve that in less than 2 sec with the proper way of doing it

[stencilwashington]

haha

that is so complicated

[PrydeClanRulez]

its called Latice math pronouced LaAAA TI SSS

[superstarz90]

wtffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffffffffffffffffffffffffff­ffffffff

[FoShizzle713]

this is impractical and slow, but it's a really cool idea

[liszt85]

This was given by Tony Jacob at the discussion forums in our college where somebody posted a link to this video. The answer is pretty simple really.

[Rika7792]

wow...that's so cool~

[italonorse]

I think there's an easier way of doing this.

[okidot]

very cool, not very practical, but is very fascinating to see the structure of maths within geomotries, and how all numbers correspond

[thebryanexperience]

well, its kind of cool.... but let me see you do 897x998 that would be way to much to deal with.. so therefor I will go ahead and use a calculator, cause as far as I know they work just fine...

[dasergiooo]

do you have a proof of this? or is this just random?

[ffn]

Did anybody else feel that this was a rather impractical method? At best, it's no faster than the standard method and would take up more space. The problems become worse as you start dealing with numbers with higher digits. I mean, 555x555 would have a middle operation of counting 3 segments of 25 line intersects, 999x999 would be 3 sets of 81... There's a reason why multiplication exists, it makes it so you don't have to do such mistake-prone counting.

[thebryanexperience]

lol didnt see your comment

[stardust2030]

confusing but cool

[Omustardo]

Very cool and useful.

[Organasm]

It's not useful at all since

a) the method isn't actually being explained at all and

b) it's still faster doing it the regular way, i.e. (321x100) + (321x20) + (321x3)

[anjoo1975]

actually it is magic maths

[czechtrainsurfer]

What about 79 x 85 = ?

[playapick]

THAT WAS FUNNY DUDE....LMAO

[playapick]

THAT WAS FUNNY DUDE!!!!LMAO

[positivelypessimisti]

yeah but try to time two digits number with three digits number ... it just doesnt work under these conditions!

[bendingunit113]

yes it does

[1O74]

yes!

[gamingfreak10]

wow thats pretty amazing

not nessessarily the best way, but it's pretty easy atleast

and impressive XD

[SpamFairy]

awesome, thanks for posting this. its really cool to see some of these weird little patterns that happen with math.

as a side note, why do so many people who reply to these types of videos find it necessary to point out obviously faster ways of doing the math problem? the point of the video isnt efficiency, its to demonstrate a pattern.

[imanoob4]

who toguht you that?i wana learn