NIVEAU 5 (CE1 - CE2)

Combinaison : [2,3,5,7] = 6

Calcul 1 Calcul 2 Calcul Final
2 * 7 = 14 3 + 5 = 8 14 - 8 = 6
3 * 5 = 15 2 + 7 = 9 15 - 9 = 6
5 + 7 = 12 2 * 3 = 6 12 - 6 = 6