How To Use An Abacus/Addition
From Wikibooks, the open-content textbooks collection
[edit] External links
- Addition on a Japanese abacus selected from Abacus: Mystery of the Bead
Personal tools
- This page was last modified on 21 September 2007, at 19:28.
- Text is available under the Creative Commons Attribution/Share-Alike License; additional terms may apply. See Terms of Use for details.
- Privacy policy
- About Wikibooks
- Disclaimers