The ability to perform arithmetic operations within the mind, without reliance on external tools such as calculators or paper, is a valuable cognitive skill. Proficiency in this area involves recalling mathematical facts, applying calculation strategies, and manipulating numbers efficiently in one’s working memory. For example, rapidly determining the product of 17 and 6, or calculating a 15% tip on a restaurant bill, are demonstrations of this skill.
Enhanced facility with mental computation offers several advantages. It fosters improved number sense and a deeper understanding of mathematical relationships. Furthermore, it can lead to increased confidence in quantitative tasks and improved problem-solving abilities in everyday situations. Historically, before the widespread availability of calculating devices, mental calculation was a highly prized skill, crucial for merchants, scientists, and engineers.