Abacus
Avis Films
Industrial and advertising
Clips are not offered for this film: no licence or public-domain mark is recorded for it.
Parts
About
Shows how to use the open-end abacus. Discusses the history of the decimal number system and principles of its use, such as grouping in addition, regrouping in subtraction and comparison of number values. To license this film and get a higher quality version for broadcast/film purposes, contact A/V Geeks LLC.
Human-made No record of this work says a model made it. What this means.
- Archive
- Internet Archive, in Ephemeral films
- Licence or status
- The Internet Archive states none for this item.
- Credit
- Avis Films
- Who can watch
- The archive gives no rating. Invisible Network shows it to Tweens profiles and older, judged from its collection and subjects. How films are placed
