F – C = Wrong
As Americans, we couldn’t tell you what Celsius is and why we should use it. Why would we want to make life easier on ourselves by dividing everything by ten? We’re more than content dealing with confusing calculations, like 12 inches to a foot, and three feet to a yard, and 5,280 feet to a mile, and so on.
But we’re not sure whether this guy is American or not. They seem to understand the point at which water boils in Fahrenheit (212 degrees), but for some reason, they subtracted 100 degrees Celsius from 212 degrees Fahrenheit. What sort of math is that?