Question

5°)Calcule o valor das expressões numéricas a seguir a) 2^‐45×12+18‐5+45÷9+81.

Answer 1

Resposta:

a)22−45 . 12+18−5+45:9+

81

22−540+18−5+45:9+9

−518+18−5+(5 . 9) . (

9

1

)+9

−500−5+5+9

−505+5+9

−500+9

−491

\begin{gathered}b)\{18-2+3 \ . \ [15+(43-20)-18+8:4]\}\\\\\{16+3 \ . \ [15+(23)-18+2]\}\\\\\{16+3 \ . \ [38-18+2]\}\\\\\{16+3 \ . \ [20+2]\}\\\\\{16+3 \ . \ [22]\}\\\\\{16 +66\}\\\\82\end{gathered}

b){18−2+3 . [15+(43−20)−18+8:4]}

{16+3 . [15+(23)−18+2]}

{16+3 . [38−18+2]}

{16+3 . [20+2]}

{16+3 . [22]}

{16+66}

82

Explicação passo-a-passo:

isso