algebra
background
billboard
black
blackboard
board
calculate
calculation
chalk
chalkboard
class
classroom
concept
divide
division
drawing
education
elementary
equation
frame
isolated
learn
learning
lesson
math
mathematical
mathematical symbols
mathematics
maths
message
minus
multiplication
multiply
nobody
plus
retro
school
student
study
subtract
subtraction
sum
symbols
teach
text
wooden
write
定額
Maths concept. Math symbols on blackboard with frame, wooden wall backgroundの素材 [FY310105361297]
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