Răspuns :
{200-[200-(200-199)]}*100=
[200-(200-1)]*100=
(200-199)*100=
1*100=100
{200-[200-(200-199)]}x100=
[200-(200-1)]x100=
(200-199)x100=
1x100=100
[200-(200-1)]x100=
(200-199)x100=
1x100=100