Why is each מכה not called "Makkas X" but just דם, צפרדע etc. while מכת בכורות is not just called בכורות but with the added "מכת"?
And why in R' Yehuda's acronym of דצ"ך עד"ש באח"ב the last "ב" stands for "בכורות" w/o the "מכת??
What is the point of the acronym in the first place?
