NIVEAU 5 (CE1 - CE2)

Combinaison : [1,4,7,9] = 20

Calcul 1 Calcul 2 Calcul Final
1 * 4 = 4 7 + 9 = 16 4 + 16 = 20
1 * 7 = 7 4 + 9 = 13 7 + 13 = 20
1 * 9 = 9 4 + 7 = 11 9 + 11 = 20