Stock image Making mistakes and wrong answer concept. Hand wiping math formula off blackboard in classroom at school. Student or teacher correcting incorrect calculation on chalkboard.
Published: Aug.13, 2018 08:36:08
Author: terovesalainen
Views: 34
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File type: image / jpg
File size: 8.4 MB
Orginal size: 5397 x 3632 px
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Level: bronze
