NIVEAU 6 (CE1 - CE2)

Combinaison : [1,7,7,8] = 22

Calcul 1 Calcul 2 Calcul Final
1 * 7 = 7 7 + 8 = 15 7 + 15 = 22
1 * 8 = 8 7 + 7 = 14 8 + 14 = 22