(9+9×9:9+9):3-(4×4-4×3)=
(9+81:9+9):3-(16-12)=
(9+9+9):3-4=
27:3-4=
9-4=
5
Răspuns:
(9+81:9+9):3- (16-12)=
(9+9+9):3-4
(18+9):3-4
27:3-4
9-4