$A = 12+2\times(-3) =$

$B = 5-10\times 5 + 16 =$

$C = 8-2\times(-9) =$

$D = \dfrac{-80}{15-5} =$

$E = \dfrac{-27+87}{10} =$

$F = 7\times(-6)- 10 \times (-7) =$

$G = 11+10\div(4-6) =$

$H = 14-24\div 4 + 5 =$

$I = (4-5)\times(1-7) =$

$J = -15\div(-5) -19 =$