The desire to economize time and mental effort in arithmetical computations, and to eliminate human liability to error is probably as old as the science of arithmetic itself.
Training hasn't been consistent for the last week or so which was a bit annoying, but going into the competition I just had to get myself into the right mind frame.
I was interested in what was really going on in Salem at that time, and I resolved to investigate this seemingly unorthodox treatment of the people and the period.