isometric line abacus icon isolated grey background traditional counting frame education sign mathematics school |
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| navigate by keyword : abacus education wooden mathematics calculator tool traditional counting frame count vector icon isolated isometric red yellow grey orange square button line linear contour outline art lineart background wood object business flat accounting math finance retro calculation old school subtraction antique learning vintage arithmetic mathematical ancient bead number |
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| Isometric line Abacus icon isolated on grey background. Traditional counting frame. Education sign. Mathematics school. Yellow and orange square button. Vector. |
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