NIVEAU 5 (CE1 - CE2)

Combinaison : [1,1,8,9] = 18

Calcul 1 Calcul 2 Calcul Final
1 * 1 = 1 8 + 9 = 17 1 + 17 = 18
1 + 8 = 9 1 * 9 = 9 9 + 9 = 18
1 * 8 = 8 1 + 9 = 10 8 + 10 = 18