Looks like there's some news about the change in Japan: https://japantoday.com/category/features/lifestyle/10-000-or-1-0000-japanese-schools-are-starting-to-mov

Looks like there's some news about the change in Japan: https://japantoday.com/category/features/lifestyle/10-000-or-1-0000-japanese-schools-are-starting-to-move-commas-on-big-numbers-but-why https://japantoday.com/category/features/lifestyle/10-000-or... I also see that mixed character-numeral format you mentioned pretty commonly here in Taiwan, especially with 萬 (simplified to 万 in Japan post-WWII). For really large numbers, there's usually not so much precision, so the tail part is just dropped.