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By: insulation
pretty sure I'll forget it in like 5 seconds though
Mill I illegit THIS?!
I Blir FE: Elf .
WE! this Gilt ,
This is all if tn I "
I Blir FE: Elf .
WE! this Gilt ,
This is all if tn I "
...
 
What do you think? Give us your opinion. Anonymous comments allowed.
#4

xehanortscrack (04/26/2014) [+] (5 replies)
This **** is stupid. Even if my example is incorrect and I got it wrong, it's still stupid because in most cases you'll end up having to divide and multiply large numbers anyways. Such as 15 x 68.
Just do as you were thought in school, it's much easier
Assuming you all were thought the same method as I was
Just do as you were thought in school, it's much easier
Assuming you all were thought the same method as I was
#1

shadowm (04/26/2014) []
Just so you know it works for numbers not as close to 100 too, though it tends to be a little more difficult. 82 x 73 = 5986...10082 = 18, 100  73 = 27, 18 x 27= 486, 18+27=45. Now here's the silly part, if the number of the mulitplication is triple digits you have to subtract the first number, in this case 4, from the addition, which is 45 so 454=41. 10041=59, not add on the last two digits of your multiplication and you get 5785. 65 x 89 = 5785. 10065= 35, 10089=11, 35 x 11=385, 35+11=46, 463=43, 10043=57, add on the 85 from the multiplication and you get 5785. Did it twice just to prove (mostly to myself) that it wasn't a fluke.
#64

qballextraction (04/27/2014) [+] (6 replies)
86 x 93...ok I got this. 14 + 7 = 21  100 = 79. So far so good, now to just multiply 14 by 7... **** .
#21

hugsta ONLINE (04/27/2014) [+] (1 reply)
Tried it with 50x50 (simplest one that came to my head)
Got some recursive **** , wrinkled my brain man.
Got some recursive **** , wrinkled my brain man.
#24

demandsgayversion (04/27/2014) [+] (4 replies)
Until the day comes that we all carry calculators everywhere we go, we need to know **** like this.
#54

kaarvaag (04/27/2014) [+] (1 reply)
This trick only work for 9X * 9X though.
Like, it doesn't work if it's 4X * 8X
Like, it doesn't work if it's 4X * 8X