Mathieu achète une moto valant 4 305 €. Il verse 1/3 de cette somme à la commande, puis, à la livraison, les 3/4 de ce qu’il devait encore. Ses parents paient le reste.
À combien s’élève la participation de ses parents ?
Lors de ce rituel, les élèves doivent tenter de résoudre un problème donné.
La démarche de résolution et la compréhension du problème donné compte plus que le résultat.
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