Calculate
Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.
Solve this problem. First calculate 100 + 50. Next, divide your answer by five. Finally, add 4 to your number. What would the number be?
HintThink about what category this is.
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Answer
304, 340, or 430.
Well, I did say add 4 to your number! Did you get it?
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Comments
al111
Oct 28, 2007
 It was alright
But u didnt u te right vocabulary when u said add 4 to your answer you should ave said now add on 4 
lukeschett
Oct 28, 2007
 It was very good. 
jasmin215
Oct 28, 2007
 i dont get it.
what was MY number?
it is either 300, 336, or 426.... those werent my numbers... 
bookworm91
Oct 28, 2007
 Hmmm.. will someone explain this, please? 
Panther91
Oct 28, 2007
 At first I was going to say "Add a 4," but then the answer might have been too obvious then. And jasmin215, I was asking you to add a 4 anywhere in the number instead of increasing the number by 4. Hope that clears any confusion... 
bookworm91
Oct 28, 2007
 OOOHH I sure am dull!! Haha, yes that makes sense now. Nice one! 
jasmin215
Oct 29, 2007
 no, i still dont get it but okay very cute 
bookworm91
Oct 29, 2007
 Jasmine, you should have gotten 30 for your answer. Then, you were supposed to add a four, not actually add it to the sum, but just add it on to the number. So it would be 30 + 4 = 304, 340, or 430. Get it? Just put a four on the number. 
jzthebomb
Oct 29, 2007
 Good teaser! 
1smart_okie
Oct 30, 2007
 I don't get it! 
dudebomb93
Oct 31, 2007
 I don't get it either 
shenqiang
Nov 01, 2007
 I think that this teaser need a change.
If "add 4" can be understood differently, then so can "100+50" and "divide by five".
This teaser will have many more possible answers. 
cheesepie
Nov 14, 2007
 Guys think about it. There used to be a trick at my school. The kids would come up and say, "What's 2+2?" And they'd get you to say 4. And they said the anwser was 22. Don't think of them as numbers, but letters. like num+ber=number 30+4=304 
TongueTwister
Nov 16, 2007
 I don't quite get it, to be honest . 
jjj055
Nov 18, 2007
 
Smart_Alex
Nov 21, 2007
 Ah, I get it. You have to put in a 4 to your sum, NOT ADD as in 30 + 4. Pretty good. 
preppygirl
Nov 22, 2007
 i was thinking it was a trick cuz it was an expression. boy im a moron 
mercedes13
Nov 23, 2007
 this is so ****ing retarded 
aango
Nov 24, 2007
 Well, I had a trick answer.
7.14159...
You said add four to yuor number, not the solution, so my number was pi! It makes sense. 
zeepuzzlemaster
Nov 25, 2007
 except pi is
3 .14159
And it could go either way... 
dachshund2k3
Nov 28, 2007
 it should say "add a 4" that would still make it kind of tricky but clear up confusion to the answer 
smartsandsoccer
Dec 16, 2007
 I don't get what was so hard about that..... you just had to add the number 4 to your number which would be 304. 
MAvanzi
Dec 25, 2007
 The Answer should be 34 but you made it has if you mean put the 4 in the answer 
974999gec
Dec 25, 2007
 ha! i didn't get it, but now i do! lol 
kashby
Dec 26, 2007
 didnt get it 
fishhooky
Jan 02, 2008
 If you interpret 'add 4' as 'position the symbol representing four somewhere amongst the symbols representing the number thirty' then you should really also apply this to dividing 150 by 5, thus, the answer should be 41550, 14550, 15450, 15540 or 15504. 
savannahlz9
Jan 31, 2008
 The answer could also be a quarter 
Wa11E
Sep 23, 2008
 Understand your thinking, but not on board with your answer.
that is placing a foour adding implies a mathamatical operator.
IMOP that is 
Cindzey
Nov 04, 2008
 the answer could ALSO be 34. 
Elios
Nov 12, 2008
 That gets a grimace. Still, I admit I am well and truly tricked! 
gottalovetacsc
Nov 30, 2008
 Hmm.. It was ok. I think it should have different wording. 
ObamaGirl
Jan 24, 2009
 What? I'm confuzzled 
rstuckmaier
Mar 14, 2009
 If 30 + 4 is 304, etc. Then shouldn't 100 + 50 be 10050?
Then my number is 20104. 
Lord_Hawk
Sep 28, 2009
 I think that there is a lack of consistency with the vocabulary used in the trick. 
MusiK
Dec 26, 2009
 oh I get it now *smacks head* 
Gwendalla
Sep 17, 2011
 I thought it was 30, because that WAS MY NUMBER! 
Benjiboo
Nov 19, 2011
 my answer was 114 
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