Excel：SUM操作之前将公式应用于每个单元格

Question

I am trying to do a SUM on a range of cells but instead of using the value in the cell as IS I need to extract a piece from each cell to use in the sum. In the example below I need to use the value before the - sign.

   A
1  1-3
2  2-60
3  5-3
4  =SUM(A1:A3)

SUM should be the addition of the first piece (before the -) so 1 + 2 + 5

I found a way to extract the data by using

=LEFT(A1, SEARCH("-",A1,1)-1) = 1
=LEFT(A2, SEARCH("-",A2,1)-1) = 2
=LEFT(A3, SEARCH("-",A3,1)-1) = 5

But how can I SUM the value of these formulas without having to use any more additional cells?

Answer 1

Use an array formula: =SUM(VALUE(LEFT(A1:A3, SEARCH(A1:A3, "-")-1))) . Then press Shift-Ctrl-Enter to tell Excel this is an array formula.

Answer 2

sumproduct alternative

=SUMPRODUCT(--(LEFT(A1:A3,FIND(A1:A3,"-")-1)))

This is a none CSE formula that peforms array like operations. As such you should avoid full column references within the sumproduct. Also note, things may go a little "WONKY" if there is no - in the cell. To avoid that you could add a - to the very end. Formula would look something like this:

=SUMPRODUCT(--(LEFT(A1:A3&"-",FIND(A1:A3&"-","-")-1)))

That will work when you just have integers and no formula