Question

B) -10-20:(+4) ? C) (+30):(-6)+(-18):(+3) ?

Answer 1

$- 10 - \frac{20}{4} = - 10 - 5 = - 15$

$( \frac{30}{ - 6} ) + ( \frac{ - 18}{3} ) = - 5 + ( - 6) = - 11$

Answer 2

Resposta:

Explicação passo-a-passo:

b) -10-20:(+4) -> -30/4 = -7,5

c) (+30):(-6)+(-18):(+3) -> -5 + (-6) -> -5 -6 -> -11