NIVEAU 4 (CE1 - CE2)

Combinaison : [2,4,6,9] = 21

Calcul 1 Calcul 2 Calcul Final
2 + 4 = 6 6 + 9 = 15 6 + 15 = 21
2 + 6 = 8 4 + 9 = 13 8 + 13 = 21
2 + 9 = 11 4 + 6 = 10 11 + 10 = 21