The paper proposes a unified morpho-semantic account for the typological variation in the form and meaning of cardinal numerals. In particular, we investigate the morphological marking of two different types of cardinals and argue that it is possible to identify cross-linguistically stable semantic ingredients, which compositionally provide the attested types of numerals. We adopt the framework of Nanosyntax (Starke 2009 et seq.) as a model of morphology which, when applied to the semantic structures we propose, delivers the relevant marking patterns.