Hi
thank you for your mail, but this is not what I need.
I know for "=" and know how to become 5 (from 2+3)
I do not know how to calculate this:

A B
2+3 5

When I enter 2+3 into A cell, cell B need to display 5, not cell A.

Cell A must look's like this:

2+3 (not 5, but 2+3)
and cell B
5

Maybe I am not clear enough?