Close up of a woman using a wooden abacus to count numbers
Palabras clave
arithmetic,
calculating,
boy,
abacus,
school,
frame,
finance,
financing,
business,
affair,
design,
old,
forest,
wood,
firewood,
hand,
concept,
education,
children,
rainbow,
hue,
colours,
investment,
number,
accounting,
learning,
learn,
study,
calculating machine,
tool,
toy,
mathematic,
intelligence,
finger,
equipment,
device,
supply,
preschool,
bead,
problem,
lesson,
class,
addition,
manly
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