NIVEAU 6 (CE1 - CE2)

Combinaison : [3,5,7,8] = 30

Calcul 1 Calcul 2 Calcul Final
3 * 5 = 15 7 + 8 = 15 15 + 15 = 30
5 * 8 = 40 3 + 7 = 10 40 - 10 = 30