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 bubble business button calculation calculator 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 speech subtraction symbol tool traditional vector vintage wood wooden |
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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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