grey abacus icon isolated white background traditional counting frame education sign mathematics school vector |
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| navigate by keyword : game abacus toy education wooden children vector mathematics symbol calculator icon isolated white grey equipment background wood tool child concept traditional school counting flat object frame count retro number old business vintage accounting math finance calculation office subtraction antique learning arithmetic mathematical ancient bead financial work inches row chinese economy |
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| Grey Abacus icon isolated on white background. Traditional counting frame. Education sign. Mathematics school. Vector. |
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