The Stone Shelter

HGB​(sub female){Scottish M} - WTF. I understood the first part, lost me on the second. I don't think I could pass k-12 now if I wanted to.

WhatamIfightingfor​(dom male) - That is the joke, the second part only half applied the base 8, it was done incorrectly, it is supposed to be used on both rows of numbers.

I like the joke Oregon's head mathematician told, there are three types of mathematicians, those who can and those who can not." Or the meme picture with the cat, and the answer, that one is great.