Maths subtraction on a chalkboard.

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Blackboard sums.

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Size: 5120px × 3413px
Location: Studio
Photo credit: © Tony Lilley / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: algebra, background, blackboard, chalk, chalk-board, chalkboard, concept, conceptual, drawing, maths, orange, slate, subtraction, sum, sums