Jeu 1 :

Mes solutions :

• 401 = (10+9×(75+10+3))/2
• 401 = (10+(75−10)×3)×2−9
• 401 = 3×(75×2−10)−(10+9)
• 401 = (75+10×(10+3))×2−9
• 401 = (75×3−(10+10))×2−9
• 401 = 10×(75+10−3)/2−9
• 401 = (10×10+9×(75+3))/2

Jeu 2: