ง ▁( song ). ▁ ▁Nevertheless , ▁y i ▁s ip ▁is ▁a ▁loan ▁word ▁from ▁Chinese . ▁ ▁La o ▁similarly ▁forms ▁multi ples ▁of ▁ten ▁by ▁putting ▁the ▁base ▁number ▁in ▁front ▁of ▁the ▁word ▁ten , ▁so ▁ ▁( sam ▁s ip ), ▁litt . ▁three ▁ten , ▁for ▁thirty . ▁The ▁exception ▁is ▁twenty , ▁for ▁which ▁the ▁word ▁ ▁( x ao ) ▁is ▁used . ▁( ▁sa o ▁is ▁also ▁used ▁in ▁the ▁North - E astern ▁and ▁Northern ▁dialect s ▁of ▁Th ai , ▁but ▁not ▁in ▁standard ▁Th ai .) ▁ ▁The ▁K har ost hi ▁numer al ▁system ▁behav es ▁like ▁a ▁partial ▁v iges imal ▁system . ▁ ▁Ex amples ▁in ▁Mes o amer ican ▁languages ▁ ▁Pow ers ▁of ▁twenty ▁in ▁Y uc ate c ▁May a ▁and ▁N ahu at l ▁ ▁Count ing ▁in ▁units ▁of ▁twenty ▁ ▁This ▁table ▁shows ▁the ▁May a ▁numer als ▁and ▁the ▁number ▁names ▁in ▁Y uc ate c ▁May a , ▁N ahu at l ▁in ▁modern ▁orth ography ▁and ▁in ▁Class ical ▁N ahu at l . ▁ ▁Further ▁reading ▁Karl ▁Men ninger : ▁Number ▁words ▁and ▁number ▁symbols : ▁a ▁cultural ▁history ▁of ▁numbers ; ▁translated ▁by ▁Paul ▁Br one er ▁from ▁the ▁re vised ▁German ▁edition . ▁Cambridge , ▁Mass .: ▁M . I . T . ▁Press , ▁ 1 9 6 9 ▁( also ▁available ▁in ▁paper back : ▁New ▁York : ▁D over , ▁ 1 9