white abacus icon isolated with long shadow traditional counting frame education sign mathematics school green |
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| navigate by keyword : abacus education wooden mathematics calculator tool traditional counting frame count vector icon isolated long shadow circle button white green 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 |
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| White Abacus icon isolated with long shadow. Traditional counting frame. Education sign. Mathematics school. Green circle button. Vector. |
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