And just like you said, it’s ok to say 一百十（or 一百一） when it’s 110，120 to be 一百二 etc, because it’s clear enough. In fact it’s kind of rare to hear 一百一十 in daily conversation (and it sounds somewhat formal).

Myriad. I like that.

That’s a nice site. Too bad it doesn’t go past 8 digits. Also a bit weird that it never uses 兩，only 二， e.g. 二百五十六 rather than 兩百五十六

I didn’t include this because it ought to be in most beginner textbooks, but your first version of 11 000 is right, except most people might perhaps just say 一万一 because there’s no risk for ambiguity (remember that 10 100 would need to have a 零 in there too). Your 688284 is right.

688 284
4 824 854
70 042 032
513 963 776
6 836 238 955

in Chinese?? Google Translate doesn’t help. If you enter, for example, “ten thousand”, it returns “一万”. Good so far. Now type “eleven thousand” and it gives you “11000”. Genius. So how do you say 11,000 in Chinese?? 一万一千？ 一万千？

Is 688,284 六十八万八千两百八十四?

Cheers!