Mental calculation

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

Mental calculation (also known as mental computation) consists of arithmetical calculations made by the mind, within the brain, with no help from any supplies (such as pencil and paper) or devices such as a calculator.

Excerpt from the Wikipedia article “Mental calculation”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Nikolay Bogdanov-Belsky, Public domain, via Wikimedia Commons.