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 art background bead business calculation calculator chinese 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 row school set subtraction symbol tool traditional vector vintage wood wooden work |
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| Black line Abacus icon isolated on white background. Traditional counting frame. Education sign. Mathematics school. Set icons colorful. Vector Illustration |
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