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123456789 = 100

wedfan · 2006-10-25 21:50:17

Can anybody please help? Does anybody know how to make up 100 by using all the digits 123456789. You can use the plus sign. eg 21+3+45+7+8+9+6 It is driving me mad here!!! I would so appreciate any help given to me.

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25-10-2006 10:50pm

#1

wedfan

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Join Date: April 2005

Posts: 13

Can anybody please help?

Does anybody know how to make up 100 by using all the digits 123456789. You can use the plus sign.

eg 21+3+45+7+8+9+6

It is driving me mad here!!!

I would so appreciate any help given to me.

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#2 25-10-2006 10:54pm
Karoma

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http://www.jimloy.com/puzz/1234.htm

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#3 25-10-2006 11:04pm
wedfan

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Posts: 13

Hey!!!

Thanks for the link, I found that one alright. But you can only use the + sign. They include the - sign.

Keep trying!

I cant wait 2 find out this answer.

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#4 27-10-2006 11:40am
simba

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Just to let ye know. This isn't a solvable equation.

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#5 01-11-2006 3:45am
Goodluck2me

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eh yes it is...

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#6 16-11-2006 11:41am
hunnymonster

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http://mathforum.org/library/drmath/view/65176.html

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#7 18-11-2006 2:31pm
bbbbb

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hunnymonster wrote:

http://mathforum.org/library/drmath/view/65176.html

Nice clear explaination.

Got me thinking, is there a base other than 10 for which it is true then? By my calculations, in base 12:

1+2+3+4+5+6+7+98=100

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#8 18-11-2006 5:43pm
singingstranger

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Surely though, 98 in base 12 = 116 in decimal/base 10?

Replace it with 60 and you woulda been in business...

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#9 26-11-2006 11:19am
bbbbb

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Yes, 116+1+2+3+4+5+6+7=144 = 100 in base 12

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