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