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Member for
4 ปี 1 เดือนAge: 10+
Level: 6
Language: German
(de)
ไอดี: 448704
26/10/2020
Country code: DE
Country: Germany
Main content: Brüche (2005373)
Addition und Subtraktion ungleichnamiger Brüche
Other contents: Grundrechnen
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