Symbolic number knowledge is a key area of mathematical development during the preschool period. The present study investigated cognitive antecedents of symbolic number skills, exploring distinct contributions of intelligence and executive functions, as well as the interaction between them. The study included 173 children from public preschools in Russia. Cognitive assessments involved measures of nonverbal intelligence, working memory, and inhibitory control. Math tests targeted the key aspects of early number knowledge: oral counting, number reading, and number comparison. Regression analyses showed that intelligence and executive functions uniquely predicted math performance, although the relative strength of each predictor varied across math skills. Moreover, there was a significant interaction between intelligence and inhibitory control in predicting performance on number matching and number comparison tasks.In both tasks, the effect of inhibitory control was greater in children with higher level of intellectual skills. Implications for intervention research and educational practice are discussed.