Ahhh....I think I see. I thought it would be a little difficult to knit something off of scrap yarn.
When I knit the sleeves and put them on scrap yarn, I wasn't sure what I was supposed to do with the working yarn. Since the stitches weren't bound off I was afraid to cut the yarn, so each sleeve is still attached to a separate skein of yarn. Do I keep them that way and knit that as the working yarn? Or do I cut them off the skein and use the working yarn from the back section as the working yarn throughout?
Thanks for all your help Ingrid and others.