NIVEAU 3 (CE1 - CE2)

Combinaison : [1,2,3,4] = 9

Calcul 1 Calcul 2 Calcul Final
1 * 2 = 2 3 + 4 = 7 2 + 7 = 9
1 * 3 = 3 2 + 4 = 6 3 + 6 = 9
1 * 4 = 4 2 + 3 = 5 4 + 5 = 9