NIVEAU 4 (CE1 - CE2)

Combinaison : [1,1,5,9] = 15

Calcul 1 Calcul 2 Calcul Final
1 * 1 = 1 5 + 9 = 14 1 + 14 = 15
1 + 5 = 6 1 * 9 = 9 6 + 9 = 15
1 * 5 = 5 1 + 9 = 10 5 + 10 = 15