Răspuns :
36:4=9
36:3=12
9+4=13
12+1=13
paranteza patrata se transforma in paranteza rotunda
(36+13:13)ori7
13:13=1
36+1=37
37 ori 7= 259
R.=259
36:3=12
9+4=13
12+1=13
paranteza patrata se transforma in paranteza rotunda
(36+13:13)ori7
13:13=1
36+1=37
37 ori 7= 259
R.=259