Répondre :
6.5* (7-2) = 6.5 * 5 = 32.5
18-13,5-3,5 = 4.5 - 3.5 = 1
18/9*2 = 2** = 4
5,5+3,5*4 = 5.5+14 =19.5
18-13,5-3,5 = 4.5 - 3.5 = 1
18/9*2 = 2** = 4
5,5+3,5*4 = 5.5+14 =19.5