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