Lolz nicked off teh interweb

[Nocturnal Submission]

[Antepli Ejderha]

[Discordant Resonance]

https://twitter.com/ImBuddhish/status/1448979917484474370

[Toby Gymshorts]

[Patrick Thistle]

[Patrick Thistle]

[Toby Gymshorts]

I have been laughing at this for about three days straight. There's one swear if that could be an issue at work.

[hobbes]

[Mr Delicieux]

[Mr Delicieux]

[Amor de Cosmos]

I'm the only person in my immediate family who understood this. Mainly because they didn't get the connection between the telephone book ("wha...?"} and the spider.

[Sporting]

I got it too!

[Gangster Octopus]

I hadn't realised that you were related.

[Mr Delicieux]

[tee rex]

Medals have been awarded for less ...

https://twitter.com/travisakers/status/1451959445857071110

[Guy Profumo]

Oh yes.

Very clever

230 - 220 x 0.5 = 5!




https://twitter.com/plum_perfect/sta...99375649443841

[Evariste Euler Gauss]

I think I saw that 230 - 220 x 0.5 = 5! thing about seven or eight years ago.

[Artificial Hipster]

I don't get the joke?

[Tratorello]

I don't get the joke?

Neither do I.

[S. aureus]

By convention multiplication trumps addition/subtractions, so 230 - 220 x 0.5 is the same as 230 - (220 x 0.5) = 230 - 110 = 120. 5! is mathematical nomenclature for 5 factorial, which is 5 x 4 x 3 x 2 x 1 = 120. So 230 - 220 x 0.5 = 120 = 5!
If you are not familiar with the convention of which functions take priority, then you may read 230 - 220 x 0.5 as being (230 - 220) x 0.5, in other words do the subtraction part first as it's written first. This would give the answer 10 x 0.5, or 5, which would be incorrect.
Outside of maths ! means something different, so the joke here is that the answer looks incorrect but is actually correct.
Hopefully I kind of explained it decently.

[jwdd27]

An exclamation point after a number indicates factorial, so in this case 5x4x3x2x1, which is 120, which is the answer of you include the omitted brackets from the first half of the sum:
230 - (220 x 0.5) = 120

EDIT: as explained above

[Evariste Euler Gauss]

Indeed. The "joke" is that people who remember the BIDMAS operator order from school but fail to recognise the exclamation mark as a factorial symbol will exclaim "but you do the multiplication first, so the answer is 120, not 5", to which someone who is asking for a slap will give you a smug look and say something like "well of course, duh, that's what it says, cos 5! equals 120."

The version I saw years ago contextualised the "exclamation mark" with something like "you won't believe it, but the answer is 5!"

Edit: By "cos" of course, I mean "because". It would be incorrect if I'd meant "cosine of".

[Artificial Hipster]

Thanks both!

[Sean of the Shed]

[Patrick Thistle]