Bonjour, qui peut me donner les resultats des opérations suivantes: 1+4-1 = 1 + 18 ---- 3   = (6 - 3) x 2 = -2 - (-3) = 6-5+2 = 1-2+8 =

1 + 4 - 1 = 5 - 1 = 4

1 + 18/3 = 1 x 3 / 1 x 3 + 18/3 = 3/3 + 18/3 = 21/3 = 3 x 7 / 3 x 1 = 7/1 = 7

(6 - 3) x 2 = 3 x 2 = 6

- 2 - (- 3) = - 2 + 3 = 1

6 - 5 + 2 = 1 + 2 = 3

1 - 2 + 8 = - 1 + 8 = 7

1+4-1 = 5 -1= 4
1 + [tex] \frac{18}{3} [/tex] = [tex] \frac{18}{18} + \frac{18}{3} = \frac{18}{18} + \frac{108}{18} = \frac{126}{18} = 7[/tex]
(6 - 3)* 2 = 3 * 2= 6
-2 - (-3) = -2 +3= 1
6-5+2 = 1+2=3
1-2+8 = -1+8=7