Răspuns :
Explicație pas cu pas:
[( 311+114-100):5+(70+8×5:4)]-230=
[( 425-100):5+(70+8×5:4)]-230=
[325:5+(70+8×5:4)]-230=
[325:5+(70+40:4)]-230=
[325:5+(70+10)]-230=
(325:5+80)-230=
(65+80)-230=
145-230=
0 | E greșit exercițiu!
Sper că te-am ajutat
[325:5+(70+420:4)]-230=
[325:5+(70+105)]-230=
(325:5+175)-230=
(65+175)-230=
230-230=
=0