Writing 1+1=3 on a blackboard.

Stock photo description

Contributor:	topshotUK view portfolio
Keywords:	Plus Sign, Formula, Mathematics, Blackboard, Number 1, Mathematical Symbol, incorrect, Evil, Number 3, Number, Education ...more
Downloads:	>100
Views:	2235
Uploaded on:	10-27-07 © Stephen Rees
Also in:	3 Lightboxes

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