black line abacus icon isolated white background traditional counting frame education sign mathematics school set |
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| navigate by keyword : abacus accounting ancient antique arithmetic background bead black business button calculation calculator chinese color colorful concept count counting economy education equipment finance financial flat frame icon inches isolated learning math mathematical mathematics number object old retro row school set square subtraction symbol tool traditional vector vintage white wood wooden work |
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| Black line Abacus icon isolated on white background. Traditional counting frame. Education sign. Mathematics school. Set icons in color square buttons. Vector Illustration. |
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