what is 1+1 equal

Kay,

I think Mel is looking for an answer in a different base system.

Mel, what base are you talking about?

If you are takling about base 10? If so, then the answer is 2.

OR...

Are you talking about base 3, base 4, base 5, which one?

342344444444444

The sum of 1 + 1 equals 2.

To arrive at this answer, you can use simple addition.

You start by adding the ones column:

1
+ 1
------
2

So, 1 plus 1 equals 2.