Question

Resolva as expressões numéricas

(a) 3+5×2=
(b ) [(4+6)×2-10]:2=
(c) {[10-(2×3)]: 2 + 20 }

Answer 1

Resposta:

(a) 3+5×2=

    3 + 10 = 13

(b ) [(4+6)×2-10]:2=

     [ 10 x 2 - 10 ] : 2 =

     [ 20 - 10 ] : 2 =

      10 : 2 = 5

(c) {[10-(2×3)]: 2 + 20 } =

   {[ 10 - 6  ] : 2 + 20 } =

   [ 4 : 2+ 20] =

     2 + 20 = 22