Senior, slide rule, concentration, person, pensioner, woman, glasses, arithmetic practise, view, arithmetic help, help, count, abacus, wooden sphere, brightly, brain training, practise, mathematics,

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Size: 5600px × 3956px
Photo credit: © Wolfgang Weinhäupl / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 80-90, 85, concentration, home, person, rule, senior, slide, years