Date: Nov 13, 2007 12:14 PM
Author: briggs@encompasserve.org
Subject: Re: make 100 by using 1, 7, 7, 7, 7
In article <fhcl1n$1gp$1@agate.berkeley.edu>, magidin@math.berkeley.edu (Arturo Magidin) writes:

> In article <20071113114106.785$O1@newsreader.com>,

> David W. Cantrell <DWCantrell@sigmaxi.net> wrote:

>>7 x 7 + 7 + 7 + 1

>

> Using the usual precedence of operations, you have that this is equal

> to (7x7) + 7 + 7 + 1, which comes out to 64.

>

> I can't come up with any way to associate them to get 100, though:

>

> [7 x (7+7)] + 7 + 1 = 106

> [7 x (7+7+7)] + 1 = 148

> 7 x (7 + 7 + 7 + 1) = 154

>

> So... how did you get 100?

Octal?