What is 12 plus 4 in mod 10? Shouldn't that be 12+4=16-10=6?

Or even 12-10=2, 2+4=6?

My book says "Be careful, the answer isnot6".

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- April 9th 2011, 02:02 PM #1

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- April 9th 2011, 03:00 PM #2