A Maths Card Trick: The Power of Three

[BladeHunterXD]

@singingbanana Hi, really cool video :). I did it to but i got a lot of cards afterwards >.< so i did it like this: pick 1 card, x3 and add 3 cards that add up to that value, repeat same for the other 3 cards :). I did it once and it worked :D. I feel smart ^-^

[ElinaHuntOnPaks]

@linuxscurvy and @singingbanana what i do is, I just use two aces instead of a 2

etc.

If I´'m short of a 6, i can use two 3s or one 4 and a 2.. etc. .:P

Get it :) ?

[IbeLangley]

"Hello again everybody!" XD

[0versizeD]

i had 6 >.>

[jefferywong82]

Hi, why can't you mult by 9 once. instead of 3x twice?

[redrosegirl09]

wrong i picked 7

[Exxh]

what if you run out of cards!?

[shelly1332]

worng !

i pick 2

[singingbanana]

@shelly1332 Congratulations, but I think you misunderstood the idea of a tutorial.

[forrest0no]

@singingbanana he also misunderstood spelling :/

[jayjayspider]

@shelly1332 He was trying to say what you would do if you had a person infront of you. But in the video, He is just showing you how you woould have done it if theere was a person infront of you

[elizze6]

I don't get what he did at the end. You can turn over any card, so why did he say the 3? I get that you can group them to add up to 9, but I don't get the "turn one over, and the one you turned over is a 3"

[TheWolzen]

@elizze6 THAT card turned over was a 3. He explained that they always added up to 9 in order show how he guessed that in this case the card turned over was a 3.

[elizze6]

@TheWolzen Oh ok for some reason I missed that he was predicting the card we turned over based on the other cards

[Qermaq]

@elizze6 All the cards at the end total 9 or 18 or 27 or so no. If you total up all the cards and it is 3 less than one of those numbers, then the overturned card must be a 3. If they totaled 5 less, it'd be a 5.

[11000010101]

To spell out 15 you take 1 (ace) and 5, not 10 and 5.

[NZKJalltheway1]

ummmmmmmmmmmm doesnt and ace equal 11 or 1 not 10?

[kamakis22]

@dieguis12

it still works... : )

[CardsOnFire2010]

you know u can just multiply by 9 to make it faster

[bidepabobo]

i did it:D

[DXXDDXXDDX]

I haven't do it with cards but on a paper

4 6 7 were the numbers I picked

so as the trick has been done that would give me

1 2 1 8 2 1

and again

3 6 3 2 4 6 3

i picked 2 and my number

so there should be only 2 groups but I got three groups????

[Kounteron]

if you run out of numbers, you can use kings as 4, queens as 3, jacks as 2

[linuxscurvy]

ok look what happened to me, when I revised the trick. I randomly selected the 3 top cards which were unfortunately 7, 8 and 9. so look what happens :

7 = 2 Ace

8 = 2 4

9 = 2 7

Ace = 3

2=6

2 = 6

2 = 6

4 = Ace 2

7 = 2 Ace <- and here's the problem - I don't have the 2 for 21 O.o so what now ? please, answer :/

[singingbanana]

Sorry. The trick is a bit clunky, but it is a trick I made up, nothing pro. A deck just seems to be a couple of 2s short.

I think you can still do this trick with one deck, in this case I would just cannibalise some of the 2s from the row you are about to discard. Problem with that is that you have to talk your volunteer through it.

Maybe we should just change the trick to two decks to make it absolutely smooth.

[linuxscurvy]

no no no worries :) actually mismag came with a wonderful suggestion - when your volunteer is out of 2s, you can ask him to write the 2 on a piece of paper :] that works for me :)

[dieguis12]

I found a flaw in your trick. If you choose 1, 2 and 3 as the first 3 numbers, it won't work because at the end you will only get 5 cards not 6 or more

[WhatforNameIsThat]

@dieguis12 The trick still works as you will have one group of with only one card which is the 9

[McQDan2013]

@singingbanana Of course you could just use the other 2 aces. it would create the same effect

[McQDan2013]

@linuxscurvy You could just use the other 2 aces. it would create the same effect

[sandmansam2]

nice

[furycutter54]

awesome

[ComputerHelpers08]

I got them cards, they are stratus?

[XxMonayBagzxX]

my card was a five

[forevermkd]

It's a really cool trick,great job!!!

[Saranet37]

I don't really get it, but it looks interesting. Anyway, I like how you mentioned charmed in the description, that is one of my favorite shows!  You are really smart, I could never think of that.

[TuTLook]

Forget it, I understood now what you've done =]

[TuTLook]

I didn't understand what you've done in the second part of the trick... (when you say to triple the cards again)

[ghfreakwierdo123]

i get it.

trpling it 2 time will always get yo a multiple of nine so there fore being able to add up

[MMVFAN11]

my card was the 4 of diamonds not the 3

[dpeatt]

that is sooooo cool!

[rrEaliTyy]

i got it

[werty1091]

wow! really cool trick. but not really suitable to be used on friends 'specially in a bar as the chances of them screwing the preparation part is kinda high. Nontheless, this trick is awesome

[singingbanana]

I completely agree.

[rainieshane]

lol 42 of hearts reference.

[singingbanana]

Glad someone got it ;)

[NumberNile]

Wait, what values are he spelling out the second time? With the 5 cards on the top.

[ndrag0n]

3x9 = 27

3x1 = 3

3x1 = 3

3x8 = 24

3x2 = 6

[luverlygir]

My card wasn't 3 D:

Though I did get 3 groups that added up to twice as much as 9

All three had an Ace and an 8

[CantTalkMagic]

THe card isn't always supposed to be three

[Asedese301093]

it isn't three.... it is the card that is missing from the last group that cant make total of 9...

[TheViiBeZ]

Ace = 1 in this trick.

[flashallround]

wow ur clever

[RickyAustinR]

did you come up with this by yourself?

if you did, your a very talented human lol

[fientara]

cool trick. got it the first time round.

[jonathanr345]

thanks

[Alfourthousand]

i dont understand

[Alfourthousand]

i got it the 6th time i wathced it =]

[drummingsebber]

lol i took 4 not three?

[markissonie]

Thats one genius math trick!

[jonathanr345]

hi there i ended up with the cards 9 9 7 2 6 3 6 3

at the end so what would i do then would i do the calucatibg of 9 when they have pickerd their card or b4

[justaloner]

You cast out the 9s after they picked their card and flipped it over. But count in your head while they're "sending" you the value of the card.

[nikaras1]

i watched it two times to understand that u wasnt adding the values of the cards!! i did it and its pretty cool! thanks!

[DLmusifix]

what if you get a 5,5,A,A,6 in the second part? where will you get the other A? coz 3x5 is 15 that makes it two Ace's then 6x3 is 18 that needs another ace where will you get the other ace?

[singingbanana]

You're quite right. That is a weakness.

It doesn't necessarily kill the trick if we reuse some of the aces from 5,5,A,A,6. We were only going to put them back in the deck anyway. But it's hard to talk your volunteer through that when your eyes are shut.

If you really want to perform the trick, you could use two decks. Or two decks with the 10s and pictures removed. Depends how much effort you think it's worth!

[aivvaronis]

At 2:26 u did a mistake. 4 * 3 = 11 and u made it 13

[OnkelPhil01]

4*3 is 12

[singingbanana]

Not a mistake, 4*3 is twelve and I used an ace and a two to make 12 - I am not adding the values of the cards, I just use the ace as a one to spell out the digits of 12.

[o0ZporK0o]

XD 4*3 is 12

[4korcina]

Awsome dude :)

[o0ZporK0o]

i picked 7

[singingbanana]

That's nice.

[polywoly15]

Sorry, but is the trick when you show that the cards make 3 piles adding up to 9?

[singingbanana]

The cards will always make piles that add up to nine, so you can predict the missing card.

[TAYZER30]

aaahhh i get it!!!

[buttmurderer]

what happens if the total is 20 sumthing..and also waht happens if you run out off a card?

[MagicRevealer09]

wtf i dont get it i picked 2? help me!

[singingbanana]

I wasn't reading your mind from here.

If you had picked two, then I would have known two was the missing number because you will always be able to put the cards in groups that add up to nine.

[MagicRevealer09]

oh that explains so much thanks dude will u check out my channel? if u like it subscribe

[loukas1997]

i dont get the trick

[hbhsknights09]

power of three charmed but awesome trick

[DeltaThree3]

Had it figured out before you told about casting out nines. Not saying it's a bad trick, au contraire, but it is a bit easily figured out by anyone a tad intelligent.

[singingbanana]

Just to throw a message out there, I thought Plazity's trick was the best, I loved it. I felt obliged to come up with something mathsy, but I can't really see mine being performed.

Out of interest, has anyone tried my trick and got it to work?

[guitarband0196]

i thought an ace is worth 11

[icanthearyoutoowell]

Some people just don't get it; Maybe they don't want to get it. Pretty cool trick. Most 'mathy' for sure. I really enjoyed it.

[singingbanana]

Thank you, I felt obliged to be the most mathsy and to use a unique effect.

[easyben21]

great trck freeked out my mum

[DEFThands08]

Hey this is a cool trick. I can see why

mismag822 had you placing even though you went a little over the limit

[615yomomma]

kinda gay

[ALANxProductions]

Its not unfair that he came third. The truth is he had a better trick than you. So get over it. Wether him and Jay know eachother in real or not doesnt even matter.

[jballa7558]

how many times do you have to triple the numbers or does it not affect the trick

[singingbanana]

twice or more, and it will work. So try starting with one and keep tripling.

[jballa7558]

thanks

[pikaqiu888]

suwee...xD

[lagas5]

w8.. Ace is 1 or 11 so why are u using it to make numbers like 12? Ace + 2 = 3 OR 13

[ItsallaboutTrevor]

he's not Adding it to the value of the card, simply using as a One to make a double digit number.

[CCV334]

be careful of 90

[okmasko]

Congratulation for the third place :) you really deserved it. Your videos are great!

[TheAlakazams]

Good job on 3rd!

[rosehurry]

؟؟؟؟

[letsjustgiveup]

This is a cool trick, but it's so unfair that it's over 4 mins! It's overtime and it should be disqualified before anything else! I'm so mad with this!!! Mismag822 shouldn't give prizes to his friends like this...

[BAMitzBRADERS]

Yeah they are good mates on YouTube if it was a fat ginger kid with a stupid hair cut performing this exact same trick he wouldnt come in third.

[letsjustgiveup]

They've actually seen each other before! So that's just downright unfair!!!

[kyle7447]

i wish this won.

[chiporama]

nice mention of the forty two of hearts i had almost forgot about that

[FreakinJeremy]

gratz

[kagayohosnow]

nice .. very nice but over 4 mins ... hopefully it doesent affect the results lol ... good luck :D

[percast]

Cool trick ^^

[Mikewasere95]

good but it's over 4mins

[v0lv0xx]

but fifteen would be an ace and the four...

[singingbanana]

This isn't blackjack.

[TyYann]

Nice trick. Very niceuse of basic math properties. However, I got a question: are you sure you always have enough cards to spell the products? Is it possible (or not) to run out of aces (for instance) during the process?

[singingbanana]

You shouldn't need more than three of any kind, but you do need to put the old cards back in the deck. Starting with something like 555 is more tricky but doesn't necessarily kill the trick.

[Moorich]

it would be possible if you used 10, jack, queen and king but now I'm pretty sure it's impossible

[gC222SA]

THE POWER OF 3 *shoots fire ball* i watched that show when i was liek 3 XD

this is a enginious therey,did u come up with it? it makes mostly logical sense,amazing . have you ever considered becoming a ''partner'' you have a substantially large veiwing audience,original videoes,and a phd XD,you'd deffinatly get in (then again you being the math guru you probebly guessed that already and have other resons) so once agian...amazing

[Moorich]

Nice one. You should win

[mccmagichands]

thats really good

[cha0sLovesFB]

Nice trick ^^ Thanks as always!

[stricklins]

Great Trick. Thanks for the entertainment.

[rotnakleugim]

cool vid, don't understand the math but understand what to do so, thanks

[lemonbro]

Awesome~!

[Strijdparel]

O, that is a nice trick. I just have to work out a routine for it :)

[singingbanana]

Thank you.

[CoasterphansCubes]

42 Of Hearts...

Cool Trick!

[singingbanana]

I was quite pleased with my 42 of Hearts reference :)

[Cherryillusions]

Very smart

[timster10001]

nice vid..cool trick..but its over the time limit.

[00zezimaz00]

first view rating and comment, nice vid ;)

[singingbanana]

Thank you :)

[MVPistheTRueUSchamp]

are they stratus playing cards? sweet vid btw

[singingbanana]

Well spotted, they are indeed.