The only way I've become at all proficient in arithmetic is from teaching calculus for over a decade. I messed up a simple addition fact in a lecture (the sum of two numbers less than 20) just this past week.
It is all Serbian, and may dog fuck his mother to the end of the world and back.
Madness string 93505
I hear sounds indescribably. Ones that usher me to act so. Surely you of all people can hear them too?