NIVEAU 5 (CE1 - CE2)

Combinaison : [1,2,8,9] = 19

Calcul 1 Calcul 2 Calcul Final
1 * 2 = 2 8 + 9 = 17 2 + 17 = 19
1 * 8 = 8 2 + 9 = 11 8 + 11 = 19
1 * 9 = 9 2 + 8 = 10 9 + 10 = 19