NIVEAU 5 (CE1 - CE2)

Combinaison : [6,7,7,8] = 28

Calcul 1 Calcul 2 Calcul Final
6 + 7 = 13 7 + 8 = 15 13 + 15 = 28
6 + 8 = 14 7 + 7 = 14 14 + 14 = 28