NIVEAU 4 (CE1 - CE2)

Combinaison : [2,3,7,9] = 21

Calcul 1 Calcul 2 Calcul Final
2 + 3 = 5 7 + 9 = 16 5 + 16 = 21
2 + 7 = 9 3 + 9 = 12 9 + 12 = 21
2 + 9 = 11 3 + 7 = 10 11 + 10 = 21