Question

2 - Marque a alternativa certa. (11+2+8)-(7+6) =?
a) ( ) 8
b) ( ) 9
c) ( ) 10
d) ( ) 11
e) ( ) 12​

Answer 1

Resposta:

Letra a)8

Explicação passo-a-passo:

(11+2+8)-(7+6) =

(21)-(13) =

21 - 13 =

8

Answer 2

• Expressão Numérica

$\sf \left(11+2+8\right)-\left(7+6\right)\\\\\\\sf 21-\left(7+6\right)\\\\\\\sf 21-13\\\\\\\boxed{\sf S=\{8\}}$