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Chalkboard with wooden frame and the text text 1+1=2
Keywords:
education
text
blackboard
illustration
sign
classroom
vector
learning
teaching
concepts
studying
green color
number
teacher
back to school
plus sign
science
visual aid
student
formula
mathematics
school building
solution
high school
no people
mathematical symbol
icon
handwriting
chalk drawing
black color
elementary age
chalk
art equipment
the text
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