I would like to add the number from a range of date e.g. may 15, 2006 to
June 17, 2006

The data arrange in this way.

...
...
....
......
14-5-2006 19
15-5-2006 12
16-5-2006 18
... ...

... ..

... ..

... ..
17-6-2006 7
18-6-2006 9
..... ..
.... ..
... ..
.... ..


I want to get a number adding all B cells if the corresponding A cell is
within the range.

I used this formula.


=SUMIF(A1:A10, "=DATEVALUE("15/05/06")", B1:B10) - SUMIF(A1:A10,
"<DATEVALUE("18/06/06")", B1:B10)

but it does not work

Thanks