white abacus icon isolated blue background traditional counting frame education sign mathematics school square |
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| navigate by keyword : abacus accounting ancient antique arithmetic background bead beads business button calculate calculation calculator chinese concept count counting economy education equipment finance financial flat frame glass icon inches isolated learning math mathematical mathematics number object obsolete old panel retro row school subtraction symbol tool traditional transparent vector vintage wood wooden work |
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| White Abacus icon isolated on blue background. Traditional counting frame. Education sign. Mathematics school. Square glass panels. Vector Illustration. |
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