Question

Resolva as expressões numéricas abaixo :
a) 8:2+[15-(4x2+1)] =
b) 9+[4+2x(6-4)+(2+5)]-8 =
c) 50+{10-2x[(6+4:2)-(10-3)]} =
d) 180:{10+2x[20-45:(13-2x5)]} =

Answer 1

Resposta:

a) 8:2+[15-(4x2+1)] = 10

b) 9+[4+2x(6-4)+(2+5)]-8 = 16

c) 50+{10-2x[(6+4:2)-(10-3)]} = 58

d) 180:{10+2x[20-45:(13-2x5)]} = 3

Explicação passo-a-passo:

a) 8:2+[15-(4x2+1)] =

     8 : 2 + [15 - 9] =

       8 : 2 + 6 =

              R: 10

b) 9+[4+2x(6-4)+(2+5)]-8 =

     9 + 15 - 8 =

        9 + 7 =

          R: 16

c) 50+{10-2x[(6+4:2)-(10-3)]} =

    50 + {10 - 2 x [8 - 7]} =

      50 + {10 - 2} =

          R: 58

d) 180:{10+2x[20-45:(13-2x5)]} =

    180 : {10 +2 x [20 - 45 : 3]} =

       180 : {10 +2 x 5} =

         180 : 60 =

             R: 3