rather than 2 times 5 plus 4; and 16 is constructed as 10+5+1. Colloquially, compound numbers from eleven to nineteen may be formed using the word preceded by any number from one to nine, so that 15 is constructed as , instead of the standard . In constructions from 6 to 9 that use 5 as a base, may alternatively be pronounced ; giving , , , and . This is especially true in dialects which elide , but not necessarily restricted to them, as the pattern also follows Khmer's minor syllable pattern. Numbers from 30 to 90 The modern Khmer numbers from 30 to 90 are as follows: The word , which appears in each of these numbers, can be dropped in informal or colloquial speech. For example, the number 81 can be expressed as instead of the full . Historically speaking, Khmer borrowed the numbers from 30 to 90 from a southern Middle Chinese variety by way of a neighboring Tai language, most likely Thai. This is evidenced by the fact that the numbers in Khmer most closely resemble those of Thai, as well as the fact that the numbers cannot be deconstructed in Khmer. For instance, is not used on its own to mean "four" in Khmer and is not used on its own to mean "ten", while they are in Thai (see Thai numerals). The table below shows how the words in Khmer compare to other nearby Tai and Sinitic languages. Words in parenthesis indicate literary pronunciations, while words preceded by an asterisk only occur in specific constructions and are not used for basic numbers from 3 to 10. Prior to using a decimal system and adopting these words, Khmer used a base 20 system, so that numbers greater than 20 were formed by multiplying or adding on to the cardinal number for twenty. Under this system, 30 would've been constructed as (20 × 1) + 10 "twenty-one ten" and 80 was constructed as 4 × 20 "four twenties / four scores". See the section Angkorian numbers for details. Numbers from 100 to 10,000,000 The standard Khmer numbers starting from one hundred are as follows: Although is most commonly used to mean ten million, in some areas this is also colloquially used to refer to one billion (which is more properly ). In order to avoid confusion, sometimes is used to mean ten million, along with