1067-Z1[removed]Elizabeth C. Rogers* ([removed]), 135 Central Ave, Demorest, GA 30535, A Poole James ([removed]), 1291 Taylors Drive, Watkinsville, GA 30677, and Elizabeth L. Poole (epoole120

Source URL: jointmathematicsmeetings.org

• Trachtenberg system
• Indian mathematics
• Jakow Trachtenberg
• Trachtenberg
• Abacus
• Mental calculation
• Quadratic
• Mathematics
• Mental arithmetic
• Arithmetic