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/26866/abacus-5.xo Notas de la versión: * highlight recently moved beads * fixed scaling problem with rods, dividing bar Sugar Labs Activities http://activities.sugarlabs.org