*I've got several of these hyphen in a series kinds of things, and I've not been able to find the definitive word on this stuff.
+hyphen after 40 or not? "for their tottery 40- and 50-year-old parents . . ."
+hyphen after self or not? "Had the brokenhearted father been one of the self- or demon-deluded pagans . . ."
+hyphen after third and fourth or not? "Maybe big boys--you know, those third-, fourth-, or fifth-grade boys, or even those sixth-grade pseudo-gods . . ."
Ah, how wonderful to find a site where people exist who actually care about such things!