Considering the association between Executive Functions (EF) and performance in mathematic, we aimed to analyse the low executive functions – which impact the individual’s personal, social, and educational functioning –, and their associations with this performance and sociodemographic aspects not already explored in students aged 8 to 12 years. One hundred and ten participants were evaluated using the MMSE, Coruja PROMAT, NEUPSILIN-INF, FDT and a Sociodemographic Questionnaire. Correlation and regression analysis indicated that low executive accomplishment influences performance in mathematics, especially considering working memory and cognitive flexibility. The variables gender, family income and parents’ age were not related to the presentation of low EF. In contrast, the sociodemographic aspects of school shift and parents’ education were shown to be related to executive performance, especially among public school students, revealing the importance of attention to these factors.