I mostly lurk, so forgive me if my first post is a question. 
I’m working on the child’s placket neck pullover from Last Minute Knitted Gifts. I have finished the body and both sleeves. But I’m stumped. After I finished the lower body, the pattern tells me to place 8 stitches on each side on a marker, which I did. It also tells me to place 8 stitches from each sleeve on a marker, which I did. Now that I am finished with the sleeves I am supposed to knit the first sleeve onto the circ for the body next to the 53 sts for the front, pm and k the back sts. Then I am supposed to knit 37 sts from the left sleeve onto the circ next to the sts for the back pm and k the front. Then I pm for the beg of the round.
How do I knit these sts onto the circ? Do I just knit the 8 sts on the holder together or what? I’m confused how that will work out. Knit the 8? Knit them all? :??
Any help would be greatly appreciated.
Thanks!