black abacus icon isolated white background traditional counting frame education sign mathematics school vector |
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| navigate by keyword : abacus accounting ancient antique arithmetic background bead black business calculate calculation calculator child chinese concept count counting economy education equipment finance financial flat frame game icon inches isolated learning math mathematical mathematics number object obsolete old retro row school subtraction symbol tool toy traditional vector vintage white wood wooden work |
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| Black Abacus icon isolated on white background. Traditional counting frame. Education sign. Mathematics school. Vector. |
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