NIVEAU 3 (CE1 - CE2)

Combinaison : [2,4,5,7] = 18

Calcul 1 Calcul 2 Calcul Final
2 + 4 = 6 5 + 7 = 12 6 + 12 = 18
2 + 5 = 7 4 + 7 = 11 7 + 11 = 18
2 + 7 = 9 4 + 5 = 9 9 + 9 = 18