Question

calcule as exressoes
25-{-2+[6+(-4-1)]}

Answer 1

25 - { -2+[6 + (-4-1)]}
25 - { -2 + [6 + (-5)]}
25 - { -2 +[6 -5]}
25 - {-2 + 1}
25 - { -1}
25 +1=26