Help (Piping ls, tr, cut)

I have to:
pipe ls, tr, and cut to output the size (in bytes) and name of all of the files/dirs in the current directory (including any hidden ones), with the size at the beginning of the line, followed by a single tab character, followed by the the filename.

I don't know what the point of using tr is. So far what I've been doing is:

ls -al | cut -d' ' -f5

the problem i'm having is grabbing the right field of information from ls

forget it. i figured it out

Nice work solving your own homework problem - but you might want to take a look at this before posting another.

Thanks
ZB