A player may not change an answer after a material portion of the answer is given. The reader may ask for clarification or a repeat of an answer from a player at any time. The player should answer the clarification or repeat what was already given only. All answers to mathematics questions must be given in appropriate standard form. Any answer not given in standard form may not be accepted by the reader even if the numerical or algebraic value of the answer is otherwise correct.
Decimal answers are generally acceptable unless specifically forbidden by the question.
All denominators must be rationalized. Terms in a polynomial must be ordered from largest degree to smallest degree. All mathematics answers should be exact unless a specific exception is given in the question. The area of a circle with radius 1 foot is PI square feet, not 3.14 square feet. A reasonable mispronunciation of a name or word may be acceptable at the discretion of the reader.