Alphabet Mathematics

This is a new game I just came up with. It involves knowledge of the English alphabet plus mathematics.

The first person states a number and spells it out in letters i.e. THREE. Each letter represents a number i.e. A = 1, B = 2, C = 3 up until Z = 26.

The second person must use the letters/numbers in a sum that totals to a number from ZERO to TWENTY.

The third person must then spell out the answer to the second person's equation and use those letters to do the same thing, as the previous guy.

You must use the numbers in the order they're given. So if the previous guy stated ONE, your equation must be O # N # E = X, where # equals a basic mathematical symbol (+ - x ÷) and X equals the answer. Also, your equation must use at least two different mathematical symbols.

So the game plays like this:







You don't have to state what each letter equals what number, but it helps. Shall we begin?

TWELVE