Erica thought carefully for a moment before raising her hand to answer the question.
"Well, in mathematical terms, there are special laws that govern each number. For example, the identity laws of algebra state that anything added to the number zero equal the original number. This same idea is reasoned when any number is mulitiplied by the number one. If you mulitply a number by one, the resulting answer is the original number.
In addition, the number zero has additional factor laws attached to it. The first one states that any real number mulitplied by zero will yield an answer of zero and if two numbers mulitplied together equal zero, then either one of those numbers has to be zero.
Also, any number divided by zero yields an answer that is not definable." |