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Member for
3 ปี 11 เดือนAge: 10-17
Level: 6º de Primaria/1º de ES=
Language: Spanish
(es)
ไอดี: 234234
27/05/2020
Country code: ES
Country: Spain
Main content: Proporcionalidad (2012919)
Regla de 3 directa inversa
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