How to Do the Calculator Prediction Trick. Your friends will think you can read minds

when you use only a calculator to guess their secret number. You will need A friend Paper A pen and a calculator. Step 1. Tell your friend to write any number on a

sheet of paper. The number can be as many digits long as they

want. Have each person in a group contribute one

digit to form a final number that you can use in the trick. Step 2. Tell your friend you will predict the final

number they will have at the end of the trick. Write the number nine on another sheet of

paper, fold the paper, and set it aside. Step 3. Have your friend scramble the digits of their

number and write it down. If the original number is 435, they might

write down 354. Have your friend write the larger of the two

numbers above the other number to avoid getting a negative total when you subtract. Step 4. Have your friend use the calculator to subtract

one number from the other. Step 5. Have your friend add the digits of the number

together until only one digit is left. Be sure that your friend uses the calculator

when doing the math calculations. This trick won’t work if the math is wrong. Step 6. Show your friend your prediction on the piece

of paper. Ask, “Is this your final number?” and prepare

to watch their jaws drop in amazement at your magic skills. Did you know A Greek mathematician in the

second century invented the basis of modern algebra when he began using symbols for representation

in math problems.

i dont get it

@bee5120 π ….

Umm,it didn't work.

lmao has anyone noticed that that's the same guy? he knew the number already

@Clubpenguinnews8 yes he has me

wtf too complicated

vin diesels hairy cousin haha

@bigguy7878

algebra is delicious, geometry sucks D:.

if you need a friend then how come that dude did both papers?

@bigguy7878 whos great ideaa was it to put letters in math?

well if i wrote 444 it wouldn't be true -.-

Just try any 2 digit number and do not use multiples as ten such as 10 20 30 40 50 60 70 80 90. I tested it twice and i won!!!

Eric Surf 6 did this before, I think.

@kroasana lol

Where can I buy a friend o:?

@anticorncob6 we would have neve gone to the moon? how come the summerians the first civilization on the planet, knew about the solar system , and how many planets were in our solar system. we couldn't predict eclipses, how did the mayans predict eclipses 50 years before they happen?and about the population , instead of population it must be the depopulation becuz thats what our governments doing, with all the earthquakes around the world, with their HAARP project. Search everything i said

Man fuck that calculator sleazy tricks. Thats just math.

I know ho to predict a footbal match for example .

I also know how to draw the same thing you drew on a paper.

@bigguy7878 Fuck you Greek Guy Fuck you!

@kroasana Haha you fuuny wittle guy you fuuny! I'm kidding my friend said that when she saw that video too! I'm her only friend, shes a geek. Anyway, she doesn't like me cuz I'm a tomboy! She said Damn when she needed a friend sucks for her, she's in jail now for an assault, on me! π

@L0ve4Cookies sad

woah my number was435 and it guessed it… thats really fucking weird.

5 ppl don't know how to subtract

1:16 its like he has a womans voice xD

0:01

I tried to do this with my mom shes 41 and so i was like pick a number and then scramble it and she was like how and then i showed her an exaple then she put the same number and she showed me and then i showed her again i was like put the bigger one on top and she still didnt know how to do it ughh what a artard

I like penguins.

He must have no friends if he has to guess his own number…

@kroasana – i'm forever alone.

it the same person

73? lol he only has two friends? π

I'm lost. 0.0

@6thegfam it does.. you can scramble it to 020 which is 20

200-20=180

1+8=9

π

how about 11 or 111?

@96FuckYeah Bahahahhahaahhahhahha π

So, Where can I buy this thing called a " friend"?

How does the person not understand where they are going> It's common math!!!

were do i get friends?

@mastertheunknown 17.99 for a monthly plan 25.99 for half a year and 42.99 for the yearly plan

@96FuckYeah so what if ur ginger?

haha i watch howcast just for the comments π

@peterpiperriperreter Until only one number remains. 1 + 8 = 9.

im sorry, but why the fk would anyone actually bother wanting to do this?

@bigguy7878

cuz hes Arab the oldest proof of the existance of algebra is in ancient Egypt ancient China and ancient Babylon

and the word algebra comes from the word al-jabr

this is so racist… an arab guy invented algebra…

WTF? did they use the same guy for both people?

this doesnt work

doesn't work if the person picks a double digit number like 66 as it comes out as 0

@96FuckYeah Use your mom

"you will need a friend"

mm fuck this

You need a: Friend

Wtf, this dude played this with his self?

i chose 99 then it`s 99-99=0 PWND! π

"you'il need a friend"

what if i'm justin bieber ??,

too fucking complicated

the guy clearly says 7 at the beginning if you read his lips

i got everything but a friend…

@benlaneconnor what they failed to mention is that the number must be at least a 2 digit number

@96FuckYeah why is the comment blank i can't see anything by something that doesn't have a soul

@mastertheunknown yea but not as good quality

i know the 1089 trick

@96FuckYeah you dont have a soul

9658 dosent work. Rearrange to 98-56 = 32. 3+2=5

@rasbeaRRy 4+2 = 6

This guy cheated.

"You will need a friend."

…It's the same guy on both sides of the table…

1:07-1:13 basically means "make sure u use a calculator cuz u know u have some dumb ass friends."

does not work for 11, 22, 33, 44, 55, 66, 77, 88, 99

@96FuckYeah Then find Harry Potter. Β―_(γ)_/Β―

@96FuckYeah you can use mirror.

I put "55" as my number, answer 10 O.o

"you will need a friend"

Me: hits x

I`m watching Howcast only to see the top comments xD

what if the number is 55 55 – 55 is 0 0+0 is 0 -.-

@cuvautoofficial or twins lol

Step 1 Go on the streets and try to buy a friend.

Step 2 Try to play this trick with him.

Step 3 I can predict that your friend what you found is ginger.

Step 4 Success Now you have got your first friend

Did you know if you are trying to do this you are a ginger or computer nerd.

924-249=675…6+7+8=9?so?

@xXtheoneinpurpleXx loooool

@cuvautoofficial twins o_o

LOL it'd be awesome if he showed the prediction upside down and the guys like LOL THATS NOT MY NUMBER DUMBASS!

wow lol why are people getting confused?

Walmart

Hmm… well i went to Walmart and asked people where i can buy a "friend," and everybody i asked just looked at me like i was crazy for some weird reason…

Yeah…People are weird these days

431-134=297… 2+9+7= 18 0.o

I'm sorry, but F U to the algebra guy… he made my freshman year living hell!

i was thinking the same thing

i don't have a friend *forever alone*

i tried this and it didn't work

Outstanding clip. Youtube is wonderful for this type of thing.

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Took me a while to realize they're the same person

it says add them until you reach one number, so in your case you will do….

431-134=297…2+9+7=18…1+8=9 π

Then you did something wrong.

No F you, algebra is cool, if it "made your freshman year living hell", you're just stupid, either that or you have a bad math teacher.

You seriously think all technology around today could have been invented without algebra? Are you retarded?

I honestly completely forgot I'd written this comment and I'm sorry if I offended you, that was not my intention. I don't care for algebra myself, but it's great that you are so passionate about it. People who are good at math make it much easier for those of us who aren't so great to focus more on what they're better at. I apologize if I offended you at all.

P.S. I actually did not have a bad teacher. I got an A in algebra, I just don't care for math.

So how was it a "living hell"?

Hey guys. Fantastic movie. My good friend used to be a flabby. He enhanced his body from 284lbs of fat to 218lbs of full-strength lean muscle mass. We thought it was magnificent! I just joined personally coz I'm attempting to get big muscles. He used the Muscle Building Bible (Look in Google)…

I CHOOSED 259, I SCRAMBLED IT TO 925, so 925 minus 259 equals 666! WHAT THE HELL HAPPENED!!!

UNLIKED!!!!!

Too much math.

I failed the first requirement…

wish i could dislike this multiple times