Question

08) Resolva as expressões numéricas abaixo: a) 7 – ( 1 + 3) = b) 9 – ( 5 – 1 + 2) = c) 5² + 2³ - 2 x (3 + 9) = d) 6² : 3² + 4 x 10 – 12 = e) (7² - 1 ) : 3 + 2 x 5 =

Answer 1

Resposta:

A) 7-(1+3)=

7-4= 3

B) 9-(5-1+2)

9-6=3

C) 52+23-2X(3+9)=

25+6-2X+12=

43-2X=

X=43÷2

X=21,5

D)