abacus
a frame with rods beads or disks that slide along the rods multiple rods with beads on each rod two sides, one for tens and one for ones a handle for moving the beads along the rods the beads can be made of wood, metal, or plastic
abacus which is a frame with rods abacus which has beads or disks that slide along the rods abacus which has multiple rods with beads on each rod abacus which has two sides, one for tens and one for ones abacus which is a handle for moving the beads along the rods abacus which has the beads can be made of wood, metal, or plastic