Word MATH on school blackboard
Palabras clave
1,
algebra,
background,
black,
blackboard,
blackboard,
class,
colours,
counting,
dark,
education,
exercise,
figure,
formula,
geometry,
homework,
cognition,
learn,
lesson,
mathematic,
mathematic,
mathematic,
number,
object,
pupil,
school,
september,
student,
study,
subject,
task,
word
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