blackboard
chalk
children
descriptive
digit
easy
educate yourself
education
elementary
equal
finance
formula
four
games
goal
graphic
group
have
help
homework
human
index
kids
kindergarten
language
learn
learning
letters
math
mathematics
message
number
page
painting
play
plus
preschool
reading
school
simple
simplicity
solution
study
teach
teaching
three
toddler
wisdom
write
writing
定額
Mathematics for children; simple calculation exercises to learn mathematics; arithmetic with objects and people; arithmetic with objects and personsの素材 [FY310167962738]
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