Hi,
not clear what you want to sum, if you want dif cell from A + different
cells from B you can use for example

=A1+A4+B10+B15


"alsaleh" wrote:

Hi,
How can I write formula (sum) that can be referenced by many cells in
a sheet. That is, I have many cells under column A to be added to
many cells under B column, the result of each operation will be stored
in cells under Column C.


MTIA


.