mental math

Fetched 2026-10-26 (cache).

Synonyms: metal lath, mental map

Antonyms: metal lath, mental map

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|North America|Philippines}} {{synonym of|en|mental calculation||arithmetical calculations using only the human brain, with no help from any supplies (such as pencil and paper) or devices such as a calculator}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.