I remember once having to do a square root longhand. Happily, I had once figured out the algebra behind the longhand method, and was able to re-create the steps from that. If I had to do it nowadays (think EMP taking out electronics), I’d probably have to do the same thing.
Green olives, or black olives?
My own preferred pizza is Beef summer sausage, turkey pepperoni, and green olives.