Jeu 1 :

Mes solutions :

580 = 10×(6×(9+3/3)−2)
580 = 10×(9×3+6/3)×2
580 = 10×6×(9×3+2)/3
580 = 10×(9×6+3+3−2)
580 = 10×(6+9×(3+3)−2)
580 = 10×(6/3+9×3)×2
580 = (9+3/3)×(10×6−2)