NIVEAU 4 (CE1 - CE2)

Combinaison : [1,5,6,8] = 20

Calcul 1 Calcul 2 Calcul Final
1 + 5 = 6 6 + 8 = 14 6 + 14 = 20
1 + 6 = 7 5 + 8 = 13 7 + 13 = 20
1 + 8 = 9 5 + 6 = 11 9 + 11 = 20