NIVEAU 5 (CE1 - CE2)

Combinaison : [3,7,8,9] = 27

Calcul 1 Calcul 2 Calcul Final
3 + 7 = 10 8 + 9 = 17 10 + 17 = 27
3 + 8 = 11 7 + 9 = 16 11 + 16 = 27
3 + 9 = 12 7 + 8 = 15 12 + 15 = 27