green abacus icon isolated background traditional counting frame education sign mathematics school long |
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| navigate by keyword : abacus accounting ancient antique arithmetic background bead business calculation calculator child chinese concept count counting economy education equipment finance financial flat frame game green icon inches isolated learning long math mathematical mathematics number object obsolete old retro row school shadow subtraction symbol tool toy traditional vector vintage wood wooden work |
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| Green Abacus icon isolated on green background. Traditional counting frame. Education sign. Mathematics school. Long shadow style. Vector. |
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