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