NIVEAU 4 (CE1 - CE2)

Combinaison : [2,4,5,9] = 20

Calcul 1 Calcul 2 Calcul Final
2 + 4 = 6 5 + 9 = 14 6 + 14 = 20
2 + 5 = 7 4 + 9 = 13 7 + 13 = 20
2 + 9 = 11 4 + 5 = 9 11 + 9 = 20