a)(+3)-(+5) = b)(+8)-(+2)= c)(+3)-(+3)=
d)(+7)-(+9)= e)(-7)-(-10)=
f)(+7) -0 = g)(-3)-0=
h)0-(+5) = i)0-(-9)=
j)(-8)-(-3)= k)(-12)-(-1)=
l)(-6)-(+9)=​