Closeup of bright abacus beads..
Girl with abacus on white
old wooden abacus on a dark background..
Close up shot of the lower portion..
old abacus with human hand
old abacus with calculator and..
Calculator-abacus isolated on white..
Business concept. Isolated on white
Wooden and plastic school abacus..
Abacus with green beads and black..
Illustration of an abacus with..
isolated toy coloures wooden abacus..
Wooden toy abacus with blank blackboard..
Abacus toy calculator over white..
Fragment of old abacus close up
Colorful abacus beads over white..
wooden abacus against white background,..
Antique Abacus with reflection..
3D Abacus on white background
Top Angle of Wooden Abacus
Wooden abacus closeup, orange yellow..
Close-up of wooden abacus over..
Little boy counting his savings..