Main numbers Thai numerals

1 main numbers

1.1 0 ten
1.2 ten million
1.3 numbers above million
1.4 decimal , fractional numbers
1.5 negative numbers
1.6 ordinal numbers

main numbers
zero ten

thai sūn written oval 0 (number) when using arabic numerals, small circle ๐ when using traditional numerals, , means centre in other contexts. sanskrit śūnya, (context-driven) alternate names numbers 1 4 given below; not counting 1 (number).

thai names n +1 , regular digits 2 through 9 shown in table, below, resemble in chinese varieties (e.g., cantonese , min nan) spoken in southern china, putative homeland of tai. in fact, etymology of thai numerals 2, 3, 4, 6, 7, 8, 9, , 10 middle chinese, while etymology of thai numeral 5 old chinese, illustrated in table below

numerical digit characters, however, identical khmer numerals. thai , lao words numerals identical, however, numerical digits vary in shape. shown below comparison between 3 languages using cantonese , minnan characters , pronunciations. thai transliteration uses royal thai general system of transcription (rtgs).

ten million

sanskrit lakh designates place value of digit (tamnaeng khong tua lek, ตําแหน่งของตัวเลข), named powers of ten: unit s place lak nuai (หลักหน่วย); ten s place, lak sip (หลักสิบ); hundred s place, lak roi (หลักร้อย), , forth. number 1 following multiple of sip becomes et (cantonese: 一, yat; minnan: 一, it). number ten (sip) same minnan 十 (sip, lit.). numbers twenty twenty 9 begin yi sip (cantonese: 二十, yisap; minnan: 二十, lit. jisip). names of lak sip 30 90, , lak of 100, 1000, 10,000, 100,000 , million, identical of khmer numerals.

for numbers twenty-one through twenty-nine, part signifying twenty: yi sip (ยี่สิบ), may colloquially shortened yip (ยีบ, ยิบ). see alternate numbers section below.

the hundreds formed combining roi tens , ones values. example, 2 hundred , thirty-two song roi sam sip song. words roi, phan, muen, , saen should occur preceding numeral (nueng optional), 2 hundred ten, example, song roi sip, , 1 hundred either roi or nueng roi. nueng never precedes sip, song roi nueng sip incorrect. native speakers use roi nueng (or phan nueng, etc.) different tones on nueng distinguish 1 hundred 1 hundred , one. however, such distinction not made, , ambiguity may follow. resolve problem, if number 101 (or 1001, 10001, etc.) intended, 1 should roi et (or phan et, muen et, etc.).

numbers above million

numbers above million constructed prefixing lan multiplier. example, ten million sip lan, , trillion (10, long scale billion) lan lan.

decimal , fractional numbers

colloquially, decimal numbers formed saying chut (จุด, dot) decimal separator located. example, 1.01 nueng chut sun nueng (หนึ่งจุดศูนย์หนึ่ง).

fractional numbers formed placing nai (ใน, in, of) between numerator , denominator or using [set] x suan y ([เศษ] x ส่วน y, x parts of whole y) indicate. example, ⅓ nueng nai sam (หนึ่งในสาม) or [set] nueng suan sam ([เศษ]หนึ่งส่วนสาม). word set (เศษ) can omitted.

the word khrueng (ครึ่ง) used half . precedes measure word if used alone, follows measure word when used number. example, kradat khrueng phaen (กระดาษครึ่งแผ่น) means half sheet of paper , kradat nueng phaen khrueng (กระดาษหนึ่งแผ่นครึ่ง) means 1 , half sheets of paper .

negative numbers

negative numbers formed placing lop (ลบ, minus) in front of number. example, −11 lop sip et (ลบสิบเอ็ด).

ordinal numbers

ordinal numbers formed placing thi (ที่, place) in front of number. not considered special class of numbers, since numeral still follows modified noun, thi in case.