For numbers 100-999, it's the hundreds digit followed by ร้อย (e.g., 100 = หนึ่งร้อย, 200 = สองร้อย), then the tens and ones digits.
Additionally, checking if there are any exceptions between 1-500 that are unique could be helpful. For example, the number 500 is ห้าร้อย followed by nothing since there are no tens or ones. So 500 is ห้าร้อย. For numbers 100-999, it's the hundreds digit followed
I should also consider providing examples of how numbers are formed in Thai. For instance, the numbering system in Thai uses base units, so numbers can be constructed by combining the base numbers with appropriate suffixes. For example, 20 is ยี่สิบ (two tens), 21 is ยี่สิบเอ็ด (two tens one), and so on. But this varies with specific numbers, especially those from 30 to 99, 100-199, and so on up to 500. So 500 is ห้าร้อย
The query starts with "%E0%B8%99%E0%B8%B2%E0%B8%A3%E0%B8%B9%E0%B9%82%E0%B8%95%E0%B8%B0 %E0%B8%9E%E0%B8%B2%E0%B8%81%E0%B8%A2%E0%B9%8C%E0%B9%84%E0%B8%97%E0%B8%A2 1-500". Let me decode that. URL-decoding these hex values might help. For example, 20 is ยี่สิบ (two tens), 21
