green line abacus icon isolated seamless pattern blue background traditional counting frame education sign |
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| navigate by keyword : abacus accounting ancient antique arithmetic art background bead business calculation calculator chinese concept contour count counting education equipment finance financial flat frame icon inches isolated learning line linear lineart math mathematical mathematics number object old outline pattern retro row school seamless subtraction symbol tool traditional vector vintage wood wooden work |
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| Green line Abacus icon isolated seamless pattern on blue background. Traditional counting frame. Education sign. Mathematics school. Vector Illustration. |
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