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