NIVEAU 3 (CE1 - CE2)

Combinaison : [1,1,3,3] = 7

Calcul 1 Calcul 2 Calcul Final
1 * 1 = 1 3 + 3 = 6 1 + 6 = 7
1 + 3 = 4 1 * 3 = 3 4 + 3 = 7
3 * 3 = 9 1 + 1 = 2 9 - 2 = 7