Question

resolva as expressões númericas
a) 13 – {2 + (111 – 150) – [5 + (3 + 1)] + 8} =

b) [20 + (5 · 6 - 22)] ÷ (5 + 2) + 1 =

Answer 1

Resposta:

a)55

b)5

Explicação passo-a-passo:

a) 13 – {2 + (111 – 150) – [5 + (3 + 1)] + 8}=

=13–{2–39–[5+4]+8}=

=13–{2–39–9+8}=

=13–{–42}=

=13+42=

=55

b) [20 + (5 · 6 - 22)] ÷ (5 + 2) + 1 =

=[20+(30–22)]÷7+1=

=

=[20+8]÷7+1=

=28÷7+1=

=4+1=

=5