I want to do simple subtraction eg =A1-B1
The problem is, a1 might have an error in it and b1 might have an error in
it.
If either A1 or B1 has an error, I'd want it to just return whatever number
it has.
That is, if A1 is 7 and B1 has an error, then I'd like it to return 7
(substituting 0 for the error).
Any ideas? Thanks.