line abacus icon isolated grey background traditional counting frame education sign mathematics school colorful |
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| navigate by keyword : abacus accounting ancient antique arithmetic art background bead black business calculation calculator circle color colorful concept contour count counting education equipment finance financial flat frame icon isolated learning line linear lineart math mathematical mathematics number object old outline retro school subtraction symbol tool traditional vector vintage white wood wooden work |
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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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