NIVEAU 4 (CE1 - CE2)

Combinaison : [3,3,7,8] = 21

Calcul 1 Calcul 2 Calcul Final
3 + 3 = 6 7 + 8 = 15 6 + 15 = 21
3 + 7 = 10 3 + 8 = 11 10 + 11 = 21