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