formula will not add up right

[Kickstart]

I put in =sum(E1+G23) & the total in the cell where I put the formula comes
up(2 or 3) cents off? It comes up short when I put =sum(E1*G23). Not al the
time but off & on. I have to add stuff on paper to check that the total is
right. I should not have to take all this time to use Excel.

 

[Niek Otten]

Your question has already been answered an hour and a half ago

 

[JE McGimpsey]

Check out

http://www.mcgimpsey.com/excel/pennyoff.html

Note that you don't need the SUM() functions.

=E1+G23
=E1*G23

work the same way.