NIVEAU 4 (CE1 - CE2)

Combinaison : [1,3,5,7] = 15

Calcul 1 Calcul 2 Calcul Final
1 * 3 = 3 5 + 7 = 12 3 + 12 = 15
1 * 5 = 5 3 + 7 = 10 5 + 10 = 15
1 * 7 = 7 3 + 5 = 8 7 + 8 = 15