Jeu 1 :

Mes solutions :

153 = 7×(25−(100/100+2))−1
153 = 25×(100+2)×(7−1)/100
153 = (7−100/25)×(100/2+1)
153 = 7×(25−(2+1))−100/100
153 = 25×(7−100/100)+2+1
153 = 100/100+2+25×(7−1)
153 = 100+(100+7−1)/2