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Author Bloke on the tv that has worked out maths.
3CorsaMeal
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Registered: 11th Apr 02
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1st Mar 13 at 15:58   View User's Profile U2U Member Reply With Quote
Says there is a secret in the fact any two digit number will make 9.

Take your age for example: 28yrs

Add the digits together, and subtract from original number, then add the two numbers together again.

2+8=10
28-10=18
1+8=9

What is this all about tbh? Anyone see the guy i mean, he was on the news.
BarnshaW
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1st Mar 13 at 16:01   View User's Profile U2U Member Reply With Quote
what about 55
3CorsaMeal
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1st Mar 13 at 16:02   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by BarnshaW
what about 55


5+5=10
55-10=45
4+5=9
Dom
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1st Mar 13 at 16:02   View User's Profile U2U Member Reply With Quote
BluKoo
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1st Mar 13 at 16:04   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by BarnshaW
what about 55


eckers90
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1st Mar 13 at 16:04   View User's Profile U2U Member Reply With Quote
thats mindblowing!
3CorsaMeal
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1st Mar 13 at 16:05   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by BluKoo
quote:
Originally posted by BarnshaW
what about 55




thought he might not of had access to a calculator so worked it out for him
Bart
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1st Mar 13 at 16:09   View User's Profile U2U Member Reply With Quote
doesn't seem that impressive tbh?
Ben G
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1st Mar 13 at 16:16   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dom
3CorsaMeal
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1st Mar 13 at 16:17   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Bart
doesn't seem that impressive tbh?


I think once you learn how to use it, its more impressive, its guy was adding up and multiplying massive numbers almost instantly. before the newsreader could type them into a calculator
Gary
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1st Mar 13 at 16:44   View Garage View User's Profile U2U Member Reply With Quote
What about 11
Gary
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1st Mar 13 at 16:44   View Garage View User's Profile U2U Member Reply With Quote
or 10
BarnshaW
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1st Mar 13 at 16:45   View User's Profile U2U Member Reply With Quote
11
1+1 = 2
11-2 = 9
BarnshaW
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1st Mar 13 at 16:46   View User's Profile U2U Member Reply With Quote
10
1+0 = 1
10-1 = 9
Root
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1st Mar 13 at 16:57   View User's Profile U2U Member Reply With Quote
What about 00?
Bart
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1st Mar 13 at 17:29   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Root
What about 00?


Kyle T
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1st Mar 13 at 17:33   View Garage View User's Profile U2U Member Reply With Quote
My missus' is a primary school teacher and I was reading her notes the other night (bored) and I discovered that if the sum of individual digits add up to 9, 18, 27, 36, 45, etc then that means the number is divisible by 9...

Such as:

18
1+8 = 9
18/9 = 2

54963
5+4+9+6+3 = 27
54963/9 = 6107


Mind. Blown


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Ian
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Registered: 28th Aug 99
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1st Mar 13 at 18:37   View Garage View User's Profile U2U Member Reply With Quote
http://www.corsasport.co.uk/board/viewthread.php?tid=145656&highlight=1&pid=1812604#pid1812604

Something to do with that.

Method is slightly different but its because you're treating the tens column as its own integer, it does special things with the significance of the leftmost digits.
Welly Wanger
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2nd Mar 13 at 11:29   View User's Profile U2U Member Reply With Quote
http://www.youtube.com/watch?v=e-P5RGdjICo

Look how the japs do it with line and dots

 
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