They certainly stayed in there somewhere, I'm coming up to retirement and can still recall them when needed.

They should still teach kids tables and mental arithmetic generally but they don't seem to judging by the the fact that at check-outs I sometimes get surprised looks if I hand over the right money for half a dozen items.

I also remember when bar-maids could serve a couple of different customers at the same time, work out both bills correctly and carry on a conversation as well.  Now if they can't find something written on one of the till buttons they seem lost.

It seems especially relevant considering the growing numbers suffering from memory loss and dementia and the advice that doing anything that maintains mental agility helps ward off these terrible conditions.