Comments on: THE MAGIC GOPHER http://www.theenglishteacheronline.com/the-magic-gopher/ The Life and Times of The English Teacher Online... Sat, 04 Feb 2012 11:03:26 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Julia http://www.theenglishteacheronline.com/the-magic-gopher/comment-page-1/#comment-39 Julia Mon, 18 Aug 2008 08:21:19 +0000 http://theenglishteacheronline.com/?p=108#comment-39 Hehe, this is fun, it took me a few turns to figure out how it works ;) Greets Julia Hehe, this is fun, it took me a few turns to figure out how it works ;)

Greets Julia

]]> By: EA Blog http://www.theenglishteacheronline.com/the-magic-gopher/comment-page-1/#comment-38 EA Blog Mon, 18 Aug 2008 07:18:12 +0000 http://theenglishteacheronline.com/?p=108#comment-38 Don't quite see how it's done. But there are some limits. If you take a number with two digits, we can express that in algebra as 10x + y where x is the tens digit and y is the ones. Then he says to add them together. That gives you x+y. You subtract that from your original number i.e. 10x+y-(x+y) ie 10x+y-x-y ie 9x. So your number is always 9 times the tens digit of your original number. That limits the possibilities drastically to 9, 18, 27, 36 etc... But how he gets the exact symbol, I don't know. Don’t quite see how it’s done. But there are some limits. If you take a number with two digits, we can express that in algebra as 10x + y where x is the tens digit and y is the ones. Then he says to add them together. That gives you x+y. You subtract that from your original number i.e. 10x+y-(x+y) ie 10x+y-x-y ie 9x.
So your number is always 9 times the tens digit of your original number. That limits the possibilities drastically to 9, 18, 27, 36 etc…

But how he gets the exact symbol, I don’t know.

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