school abacus with colorful beads white color background close view |
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| navigate by keyword : abacus addition arithmetic background beads business calculate calculator childhood children class closeup color colorful concept copy count deduction desk education elementary frame green kids kindergarten learn learning math mathematics nobody number object part play preschool red retro school space student subtraction summation tool top toy traditional vintage white wood yellow |
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| School abacus with colorful beads on white color background, close up view, copy space. Kids learning count, children math class concept |
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