Voici des calculs:

9x8x7x6x5x4x3x2=?                                                                                                                                                                                                                                                         > : - /

9+8+7+6+5+4+3+2+1=?                                                                                                                                                                                                                                                    ( ! - D

9-8-7-6-5-4-3-2=?                                                                                                                                                                                                                                                               > : - /

9:8:7:6:5:4:3:2:1=?                                                                                                                                                                                                                                                             > : - |                                                          Allez essayer !

 

Adrien