NIVEAU 4 (CE1 - CE2)

Combinaison : [1,4,4,7] = 15

Calcul 1 Calcul 2 Calcul Final
1 * 4 = 4 4 + 7 = 11 4 + 11 = 15
1 * 7 = 7 4 + 4 = 8 7 + 8 = 15