Sorting Question

I have two columns of data that I want to match up. The
problem is that one of the columns has less data than the
other. I want the cells to line up when they equal the
same number. Some of the cells will not have an equal
though. I know that I can sort both columns, but the data
will not line up because one of the columns has less data
than the other. I can do an insert to push the data down
so that it lines up, but that is time consuming.

Thank you.
Tim

Here's one solution: a list of numbers- I used 1 thru 10- in A1:A10. A
second, shorter list of numbers in C1:C3. I wrote the following
formula in E1 and copied it thru E10:
=IF((ISERROR(MATCH(A1,$C$1:$C$3,0))),"",A1)
This does not require the lists to be sorted.

Will that do it for you?