NIVEAU 5 (CE1 - CE2)

Combinaison : [1,2,3,5] = 13

Calcul 1 Calcul 2 Calcul Final
1 * 3 = 3 2 * 5 = 10 3 + 10 = 13
3 * 5 = 15 1 * 2 = 2 15 - 2 = 13