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

$-14,5+(-6,9) = $  

$14-8 = $  

$2\times(-8) = $

$K = 4\times(-11)- 6 \times (-4) =$

$14,6-7,1 = $  

$-18,8+3,1 = $  

$-26-27 = $  

$9\times(-11) = $

$(-2,1)\times(-4) = $

$8-(-23) = $  

$-1+(-3) = $  

$(-5)\times(-5) = $

$K = 2-8\times(-7) =$

$H = 14-3\times 6 + 11 =$

$T = 5\times(-5)- 8 \times (-3) =$

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

$-12+20 = $  

$T = 21+10\times(-8) =$

$17,5-(-2,7) = $