Sum of only selected cells in Excel

[S1L1Y1]

I have Office Xp. When using Excel is there a way to get a sum of only
selected cells not in a sequence, and how can I selected those rows or
cells?
Sol

 

[Bob I]

Sum will appear in the Status bar if you enable it. And select random
cells by holding down CTRL key and clicking on them

 

[ANONYMOUS]

I have Office Xp. When using Excel is there a way to get a sum of only
selected cells not in a sequence, and how can I selected those rows or
cells?
Sol

You need to use SUMIF() formula. For example your numbers are in cells:
C1:C10. So in Cells B1:b10 enter 1 to indicate the selected cells you
want for addition purposes. Then your formula in E11 might look
something like this:

=SUMIF(B1:B10,"=1",C1:C10)

The above formula says that if cells in B1:B10 are equal to 1, then add
all corresponding cells in C1:C10

hth