Incidently I always change automatic language correction tools to English GB, I live in this side of the Atlantic, and that is variant I learnt while growing up.
- "proper English"
- metric system
- Euro
(Back in the eighties,) I had a teacher who taught both French and geography (I think), and he used the apostrophe as the thousands separator. With a twist. For example, he would write three million as 3'000'000, and then he would abbreviate that to 3''. Very fascinating. I wonder if that was somehow inspired by Swiss conventions.
One billion, two-hundred thirty-four million, five-hundred sixty-seven (the rest are the decimals)
I've never seen 3'' but that's a nice shorthand
I now live in Germany where the format is confusing to me: 1.234.567,890. It's pretty much the opposite of English format!