Trachtenberg system (Q71746)
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system of rapid mental calculation
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Trachtenberg system |
system of rapid mental calculation |
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Wikipedia(12 entries)
- dewiki Trachtenberg-System
- enwiki Trachtenberg system
- eowiki Metodo de Trachtenberg
- eswiki Método Trachtenberg
- fawiki روش تراختنبرگ
- frwiki Méthode Trachtenberg
- idwiki Sistem Trachtenberg
- plwiki System Trachtenberga
- ptwiki Método de Trachtenberg
- ruwiki Система Трахтенберга
- sahwiki Трахтенберг төгүллүүр ньымата
- ukwiki Система Трахтенберга