mental abacus
Sign in to saveAlso known as abacus system
system where users mentally visualize an abacus to do calculations
Wikidata facts
- Instance of
- mental calculation
- Named after
- abacus
- Image
- AlbertoCotoAbaco.jpg
via Wikidata · CC0
Also known as abacus system
system where users mentally visualize an abacus to do calculations
via Wikidata · CC0