Acalculation (acalculia) is a medical term meaning a violation of the ability to do correct mathematical thinking. Accrual disorder is a special case of affective instability with a lack of feelings of desire and a feeling of general meaninglessness of one's activities. Often in children, calculation manifests itself as a consequence of dissatisfaction with
Acalculia is a condition in which a person experiences difficulty in mathematical calculations. This may be due to various reasons, ranging from defects in brain activity to mental dysfunction. Despite the fact that acalculia is not an independent disease, it can very significantly affect a person’s quality of life and his social adaptation