$\dfrac{2,2}{-2} = $

$L = 27+30\div(4-9) =$

$B = 17-6\times(-8) =$

$(-2)\times(-1,1) = $

$C = \dfrac{-72}{15-7} =$

$D = 7-81\div 9 + 1 =$

$-5-7 = $  

$(-5)\times 4 = $

$M = -56\div(-8) -19 =$

$24-(-11) = $