# Sp00ky math...

Posted 5 years ago2018-10-31 02:41:02 UTC
Alberto309weapon_spaghetti

# 9+((120–21·3+10-4)·2:3-(6·9-(80–18·4)·4)+18):2 =???

Sp00ky... Right?

Commented 5 years ago2018-10-31 03:35:54 UTC Comment #101587
Happy -58.5th birthday?
Commented 5 years ago2018-10-31 11:47:33 UTC Comment #101588
Happy 28th birthday?
Commented 5 years ago2018-10-31 11:58:44 UTC Comment #101589
Happy Birthday!
Commented 5 years ago2018-10-31 12:40:03 UTC Comment #101590
Happy <correct number here> Birthday!
Commented 5 years ago2018-10-31 12:44:38 UTC Comment #101591
Commented 5 years ago2018-10-31 18:47:50 UTC Comment #101592
Happy spooky birthday!
Commented 5 years ago2018-10-31 19:29:00 UTC Comment #101593
Thank god for Wolfram Alpha. Happy 28th birthday!
Commented 5 years ago2018-10-31 21:52:13 UTC Comment #101594
How did you get it to 28?
9+((120–21·3+10-4)·2:3-(6·9-(80–18·4)·4)+18):2 = 9+((63)*2:3-(54-(8)*4)+18):2 = 9+(126:3-(22)+18):2 = 9+(126:-1):2 = 9+(-126):2 = -117:2 = -58.5 ???
Commented 5 years ago2018-10-31 23:26:48 UTC Comment #101595
Thanks everybody!

Is Admer the only one that didn't cheat like Pengy and got the right one?

You lazy Pengy...
Commented 5 years ago2018-11-01 20:57:37 UTC Comment #101597
You can thank my calculator.
Its screen cracked a lil' bit when I fell on the concrete floor, after I finished the school physics competition. It's been with me for years, lol.
Commented 5 years ago2018-11-02 12:02:48 UTC Comment #101598
Potatis: In your third>fourth segment, you do subtraction/addition before division. 9+(126:3-(22)+18):2 = 9+(126:- 1):2 should be 9+(126:3-(22)+18):2 = 9+(42-22+18):2

I got 28 in my brain after a little while. I'll note that this is the first time I've seen dots and colons used for multiplication and division. Is that common?
Commented 5 years ago2018-11-02 12:27:31 UTC Comment #101599
In my experience, dots for multiplication is common, colons for division is not. Colons are used for ratios which represent relative proportions, rather than an operation with a single answer.
Commented 5 years ago2018-11-02 17:46:57 UTC Comment #101600
I thought you're supposed to do division after subtraction/addition/multiplication when it's written with a colon? Maybe it varies by country.
Commented 5 years ago2018-11-02 18:42:09 UTC Comment #101601
Your birthday is on Halloween? lucky!
Commented 5 years ago2018-11-03 09:01:47 UTC Comment #101602
Well, as I said, I've never seen colons used for division at all. I don't know about this switching order of operations malarkey though. Sounds like something that would ruin the very foundations of mathematics as we know it!
Commented 5 years ago2018-11-03 09:20:17 UTC Comment #101603
In my country, we use dots for multiplication and colons for subdivision.
Nobody uses × or ÷ here.
Though in my country, we just prefer using fractions instead of colons (starting from 6th grade or so), so we don't run into colons that often anyway.
Commented 5 years ago2018-11-04 02:55:33 UTC Comment #101604
SO MANY BIRTHDAYS ON HERE RECENTLY happy birthday
Commented 5 years ago2018-11-04 12:38:49 UTC Comment #101607
Happy birthday!

I turned 46 in October.
Commented 5 years ago2018-11-06 18:16:55 UTC Comment #101614
Thanks everybody! :3