Here are some old names for numbers in Japanese.
20 - hatachi
30 - misoji
40 - yosoji
50 - isoji
60 - musoji
70 - nanasoji
80 - yasoji
90 - kokonosoji
100 - momo (not sure how to make the other hundreds)
1000 - chi (I think I've seen "michi" for 3000)
Nowadays, these numbers are obsolete for the most part. The tens, I think, are still used to talk about ages.