NIVEAU 5 (CE1 - CE2)

Combinaison : [2,7,8,8] = 25

Calcul 1 Calcul 2 Calcul Final
2 + 7 = 9 8 + 8 = 16 9 + 16 = 25
2 + 8 = 10 7 + 8 = 15 10 + 15 = 25