blue abacus icon isolated background traditional counting frame education sign mathematics school white |
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| navigate by keyword : abacus education wooden mathematics calculator tool traditional counting frame count vector icon isolated pennant template white blue 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 row chinese economy obsolete calculate beads office |
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| Blue Abacus icon isolated on blue background. Traditional counting frame. Education sign. Mathematics school. White pennant template. Vector. |
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