Cardinal numerals is an important linguistic phenomenon. Among the studies that have been done by linguists on the syntax of complex cardinals, the representative of them is the one that Ionin & Matushansky (2006) conducted on the syntax and semantics of complex cardinals involving multiplication and addition. In this article, Ionin & Matushansky’ s proposal on the syntax of complex cardinals will be applied to Mandarin Chinese and other minority languages in China for examination with the purpose of trying to provide a cross-linguistic account to the syntax and semantics of complex cardinals.