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