I don't think there will ever be an answer to your question. Neither has it been answered in the past, if I'm not mistaken, considering I've gone through the 190 odd pages of this thread at a brisk pace.
i think the math change was a relatively recent event. like... within a year? i read the rest of the thread too.. "aviation math" only came up maybe within the last 20 pages or so. Prior to that everyone was still referring to the 30mins 33question "unfinishable" math test