Question

Resolva as expressões numéricas abaixo:

C) [ 25 - ( 18 ÷ 3 ) ] × { 5 - [ 18 - ( 4 × 5 - 4 ) ] }

H) { [ 12 - 5 × 2 + ( 24 ÷ 3 - 7 ) ] + 5 }​

Answer 1

[25-(18:3)]x{5-[18-(4x5-4)]}

[25-6]x{5-[18-16]}

19x{5-2}

19x3

=57

{[12-5×2+(24÷3-7)]+5}

{[12-5x2+1]+5}

{[12-10+1]+5}

{3+5}

=8

Answer 2

[ 25 - ( 18 : 3 )] . { 5 - [18 -( 4 . 5 - 4 )]}

[25 - (+ 6 ) ]. { 5 - [ 18 - ( +16 )]}

 [ 25 - 6 ] . { 5 - [ 18 -16 ]}

  [ 19 ] . { 5 - [ 2 ]}

    19 . { 5 -2}

     19 . 3

        57

{[ 12 - 5 . 2 + ( 24 : 3 - 7 )] +5 }

{[ 12 - 5 . 2 + ( +1)] +5 }

  {[ 12 - 10 + 1 ] + 5 }

    {+ 3  + 5 }

      8