$N = 11\times(-5)- 10 \times (-7) =$

$-16-(-3) = $  

$D = 2\times(-7)- 2 \times (-2) =$

$19,8-2,7 = $  

$21\times(-2) = $

$(-9)\times(-7) = $

$(-3)\times 4 = $

$E = (4-9)\times(3-7) =$

$L = 4-2\times 4 + 9 =$

$L = 25+3\times(-3) =$

$(-3)\times(-0,4) = $

$-17,1+(-17,9) = $  

$-12,3-13,8 = $  

$28-11 = $  

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

$-6+22 = $  

$-20+(-3) = $  

$-9-4 = $  

$A = 11-4\times(-3) =$

$-15,2+2,7 = $