isometric line abacus icon isolated black 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 isometric turquoise blue circle button line linear contour outline art lineart 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 |
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| Isometric line Abacus icon isolated on black background. Traditional counting frame. Education sign. Mathematics school. Turquoise circle button. Vector. |
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