Jeu 1 :

Mes solutions :

• 920 = (75−6)×(75+5)/(9−3)
• 920 = (75+5)×(75+3−9)/6
• 920 = 9×(75+6×5)−75/3
• 920 = 5×(9+(75+75×6)/3)

Jeu 2: