One who redeems maaser sheni but did not designate it by name, R' Yose says: This is sufficient; R' Yehudah says: He must specify. [If] he was talking with a woman about matters of her divorce or her betrothal, and he gave her her bill of divorce or [an object to effect] her betrothal, but did not specify, R' Yose says: This is sufficient. R' Yehudah says: He must specify.

One who set down an issar and ate against half [of it], then went to another place where it can be spent as a pundeyon, may eat another issar against it. One who set down a pundeyon and ate against half of it, then went to another place where it can [only] be spent as an issar, may eat another half against it.  One who set down an issar of maaser sheni may eat eleven per issar against it, and one from a hundred per issar. Beis Shammai say: It all is ten. But Beis Hillel say: In definite [maaser sheni], eleven; but in demai, ten.