1+2=3 hand written with chalk on blackboard

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Size: 4288px × 2848px
Location: Jakarta
Photo credit: © Leo Lintang / Alamy / Afripics
License: Royalty Free
Model Released: None

Keywords: algebra, background, black, blackboard, board, calculate, calculation, chalk, chalkboard, class, education, equation, formula, knowledge, learn, lesson, math, mathematics, number, school, science, solution, study, symbol, symbols, teach, text, textured, theory, wood