NIVEAU 5 (CE1 - CE2)

Combinaison : [1,3,7,9] = 19

Calcul 1 Calcul 2 Calcul Final
1 * 3 = 3 7 + 9 = 16 3 + 16 = 19
1 * 7 = 7 3 + 9 = 12 7 + 12 = 19
1 * 9 = 9 3 + 7 = 10 9 + 10 = 19