> > I bought 12 gallons of gasoline with metric money.
>
> No, you used decimalised money. There is no metric standard for money.

Well, if you're going to be technical about it . .

I asked my son, who builds houses if the Mexican workers had any problem with English measures and he said they used materials cut to feet and inches just like we do here in the US. I have been to Mexico enough to know that they post speed limits in kilometers just like Canada, so I assumed they were 100% metric. Some day I'll learn about assuming.

I was teaching science back in an earlier century, when there was a big push to "go metric." I found that comparing metric measures to cent, dime, dollar, ten dollar bill, and hundred dollar bill was the best way to get students to understand metric measure. Money talks.
Howard