Arithmetic, as the foremost of the five traditional arts within the Xuanmen classics, serves as the foundation of everything and the crux of the path to immortal cultivation. It's an indispensable part of Li Fan's incredible adventure, yet it seems I have not taken the time to properly discuss it till now, right? Well, let's talk (or rather, wade through) about it.
Arithmetic, of course, is not merely about counting numbers. Though the mathematical knowledge Li Fan accumulated before his transmigration was only at a mortal's level, with his photographic memory and the assistance of a system, after several months of dedicated cultivation, pure arithmetic problems were no longer an issue for him.
However, calculation, divination, and mental arithmetic are just parts of the problem-solving process. Beyond 'arithmetic', there's an 'art' involved, which is akin to the magical domain of seeking divine guidance or fortune-telling.