This page shows the Thai numbers from 1 up to 90, and these are given in
English, Thai and an approximate pronunciation of the Thai. We have another
page showing the Thai numbers from 100 to 1000000.
The Thai script numbers are fairly rarely used in comparison to the standard
international ones, as it seems that they are mainly only used in situations
where there is a different price for Thai people and for foreigners. This
is presumably in the hope that foreigners won't realize how much more they
are paying, though if you can recognize the Thai price then you have a reasonable
chance of only having to pay that much.
