Circular Math

I was doing my math homework one night when I got stuck, so I asked Mr. Flibble for help. When he could't get the algebra to wrap around my thick skull, he told me about a secret form of penguin mathmatics called circular math. The baisic law of circular math is this, " You always end with whatever you started with." The most baisic equation is (A + B ) - ( C + D ) = A.
This was the first circular math problem to ever be written by a human, thanks to our dear friend, Leonardo Da ' Vinci. First invented by Da ' Vinci, ( I absolutaly adore Da 'Vinci, he was a Penguin spy ) the circular math is used widespread through out Penguin scociety. Although it has little use except in reference to itself, it no doubt inspired Douglass Adams to write about the Infinate Improbability Drive in his book, " The Hitchhicker's Guide to the Galaxy. "