What is the short form of answer?

The short form of "answer" depends on the context. Here are a few possibilities:

* Ans: This is the most common abbreviation for answer.

* A: This can be used in situations where the answer is clear from the context.

* R: This can be used in situations where the answer is a "response".

It's important to consider the context and audience when choosing an abbreviation. For example, in formal writing, it's best to avoid using abbreviations altogether.