Mireia Querol Solsona
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Note on Nivells de dificultat dels problemes de sumar i restar, created by Mireia Querol Solsona on 19/01/2018.

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Mireia Querol Solsona
Created by Mireia Querol Solsona over 6 years ago
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Nivells de dificultat dels problemes de sumar i restar