Jeu 1 :

Mes solutions :

744 = 3×(75+100×2−(25+2))
744 = 3×((100+25)×2−2)
744 = 2×(25+(100+75)×2−3)
744 = 3×(100+75×2−2)
744 = 75+3×(25+100×2−2)
744 = (25+(100+75)×2−3)×2