$K = \dfrac{-27+63}{6} =$

$5\times(-2) = $

$\dfrac{-12,4}{4} = $

$S = 8\times(-3)- 3 \times (-11) =$

$-11-20 = $  

$L = 11-10\div 5 + 13 =$

$R = 26+32\div(2-10) =$

$(-4)\times(-2,2) = $

$20-(-16) = $  

$C = 15-2\times(-2) =$