Comment by anon291

You said:

> The right answer they were looking for was 3, not 3.0. Adding that .0 implies a precision which is not correct.

In contemporary mathematics, 3 is 3.0 . Both 3 and 3.0 belong to the set of integers. There is no additional precision being demonstrated by adding a 0 at the end of the 3. This is simple notation, not refering to a new concept.