The best definition is 'Competence' as it reflects the ability to use mathematical skills effectively.
Competence is the best definition in this scenario as it aligns with having the ability to use logic and mathematical skills to solve problems. Aptitude for math indicates a high level of acquired aptitude in the subject, which refers to natural talents developed through training and practice.
For example, someone with a natural knack for numbers excelling in accounting after years of practice demonstrates acquired aptitude in action, leading to increased productivity and proficiency in their work.
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