NIVEAU 6 (CE1 - CE2)

Combinaison : [2,6,7,8] = 3

Calcul 1 Calcul 2 Calcul Final
2 * 8 = 16 6 + 7 = 13 16 - 13 = 3
7 + 8 = 15 2 * 6 = 12 15 - 12 = 3