NIVEAU 4 (CE1 - CE2)

Combinaison : [1,2,4,9] = 15

Calcul 1 Calcul 2 Calcul Final
1 * 2 = 2 4 + 9 = 13 2 + 13 = 15
1 * 4 = 4 2 + 9 = 11 4 + 11 = 15
1 * 9 = 9 2 + 4 = 6 9 + 6 = 15