Réponses

2014-10-13T17:43:14+02:00
6,2 x 8 + 8 x 3 = 8 x (6,2+3)
6x15 - 6x4 + 6x7 = 6 x (15-4+7)
11x7 + 4x11 + 9x11 - 11x5 = 11 x (7+4+9-5)