I have a column of 50 numbers

[Skip]

some are negative and some are positive. I need to add +1 to the
positive numbers and -1 to the negative numbers.
So 4 becomes 5 and -10 becomes -11. Am I stuck in doing this
manually? Thanks for any help. Skip

 

[Glenn]

some are negative and some are positive. I need to add +1 to the
positive numbers and -1 to the negative numbers.
So 4 becomes 5 and -10 becomes -11. Am I stuck in doing this
manually? Thanks for any help. Skip

=A1+SIGN(A1)