svp super urgent dm pour demain juste l'ex 1 svp ♡♡♡♡♡♡♡♡

bonjour

A = - 8/125

a) A = - 4/5 x 2/25 = - 8/125

b) A =  1/125 + ( - 9/125) = 1/125 - 9/125 = - 8/125

c) A =-  4/5 : 25/2 =- 4/5 x 2/25 = - 8/125

d) A = - 2/5 x 1/5 x 4/5 = - 8/125

e) - 8/125 = -  0.064