Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL
Sums
1989/02/01 Arrojeria, Eustakio - Elhuyar Zientziaren Komunikazioa | Lizaso, Pili - Informatika SailaElhuyar Fundazioa Iturria: Elhuyar aldizkaria
The first operation learned in mathematics is: SUMA. According to the teaching system of yesteryear it was necessary to learn by chance from memory, and at least it was difficult to study.
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