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Very interesting! All possible solutions 0, 6, 18, ..., 81 have the same symbols. It's just that the symbols keep changing on the table. :)
Whichever two digits that you choose, after substracting the "new number" will end up being a number which is a multiple of 9. With that, only one symbol will match .Tommy
Let the no. chosen be 10*X + Y.Following the operation request would lead to10*X + Y - (X + Y)= 9*Xwhich is a multiple of 9.All "multiple of 9" symbols are the same. Hence there is only one answer.
Very interesting! All possible solutions 0, 6, 18, ..., 81 have the same symbols. It's just that the symbols keep changing on the table. :)
ReplyDeleteWhichever two digits that you choose, after substracting the "new number" will end up being a number which is a multiple of 9.
ReplyDeleteWith that, only one symbol will match .
Tommy
Let the no. chosen be 10*X + Y.
ReplyDeleteFollowing the operation request would lead to
10*X + Y - (X + Y)= 9*X
which is a multiple of 9.
All "multiple of 9" symbols are the same. Hence there is only one answer.