Front of the Envelope Arithmetic
Rabbi Sruly Bornstein
The question of R' Leizer Kanitz on R' Eliezer: If you calculate the shiurim of K'zayis, K'Beitzah, etc. it comes out that the shiur of Challah according to R' Eliezer (Bais Shammai) is less than the shiur of בל יראה. Sugya: שיעורים