Simple abacus with sliding beads represents calculation
Schlüsselwörter
abacus,
calculation,
mathematic,
learning,
education,
counting,
arithmetic,
tool,
wooden,
bead,
rod,
traditional,
simple,
classic,
number,
school,
preschool,
children,
student,
teacher,
finance,
accounting,
history,
old,
antique,
vintage,
culture,
asia,
china,
japan,
mental,
development,
skill,
intelligence,
logic,
problem,
solving,
game,
toy,
childhood,
fun,
activity,
icon,
symbol,
vector,
illustration,
line
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