NIVEAU 4 (CE1 - CE2)

Combinaison : [2,7,7,8] = 24

Calcul 1 Calcul 2 Calcul Final
2 + 7 = 9 7 + 8 = 15 9 + 15 = 24
2 + 8 = 10 7 + 7 = 14 10 + 14 = 24