$M = 6\times(-6)- 5 \times (-3) =$

$1-(-17) = $  

$S = 26+4\times(-4) =$

$(-1,1)\times(-3) = $

$\dfrac{50}{-5} = $

$H = (1-6)\times(3-7) =$

$(-9)\times 7 = $

$T = \dfrac{-70}{17-7} =$

$B = 17-8\times 3 + 9 =$

$-2-15 = $