Jeu 1 :

Mes solutions :

582 = 7+100×(5+1)−25
582 = 100×(9−5)+7×(25+1)
582 = 7+5×(100+25−(9+1))
582 = 25+7+5×(100+9+1)
582 = (100+9−25)×7−(5+1)
582 = 7×(100+1)−25×5
582 = (100+25−7)×5+1−9