Help with formula

[Twmorgs]

Hi,

I have a formula in a simple spreadsheet that I would like to expand on.

=IF(C5>0,E4-C5) OR (D5>0,E4+D5)

Can anyone please help me correct this formula

Thanks

[#2]

@Twmorgs 

See if you want this...

=IF(C5>0,E4-C5,IF(D5>0,E4+D5,""))

[#3]

@Twmorgs 

As variant perhaps

=E4-C5*(C5>0)+D5*(D5>0)