Página web de la actividad: http://activities.sugarlabs.org/addon/4293 Sugar Platform: 0.82 - 0.88 Descargar ahora: http://activities.sugarlabs.org/downloads/file/26859/abacus-3.xo Notas de la versión: * Added frame around beads to improve appearance * Internal restructuring of code Sugar Labs Activities http://activities.sugarlabs.org