I would like to end up with a cell to have =10+2 as the formula. I don't just
want the value of 12 dumped into the cell. My attempt is below but I can't
figure out why it bombs.

Range("C" & cntrl - 1).Formula = "=" & Range("C" & cntr1 - 1).value & "+" &
Range("C" & ctrl1).value

Thanks
Bob