I'm Dutch, and I've effectively made this change. Our number system sucks (though not as bad as the Danish one - which is my wife's language so I'm regularly fo

I'm Dutch, and I've effectively made this change. Our number system sucks (though not as bad as the Danish one - which is my wife's language so I'm regularly forced to decipher that mess), whenever someone says a number like 47 out loud, I have to think hard about whether it's 47 or 74. So I've decided to generally stop doing maths in Dutch. Our company is international so we all work in English anyway so when I do stuff in eg Excel, calc.exe etc, I just count in English. When I speak in Dutch, I generally simply avoid the last digit in large-ish numbers. Eg I don't care what language I say "250" in, but when I'm speaking Dutch I'd round "252" to "about 250", which is fine enough in most contexts. FYI fun trivia: Norway fixed this about their language. They used to do what the Danes do but now it's like in English etc. They not only made up normal proper words for eg "50" or "90", but also reversed 2-digit numbers, eg "42" in Danish is "to-og-fyrre" and in modern Norwegian it's "førti-to". That's a pretty ballsy way to change a language and I'm jealous.