a) 3+(+6) = 3+6 = 9
b) -3+(+7) = -3+7 = 7-3 = 4
c) -11+(-7) = -11-7 = - 18
d) +9+(-9) = +9-9 = 0
e) 0+(-11)+(+5) = -11+5 = -6
f) -96+0+(-6) = -96-6 = -102
g) -3+(-6)+(-3) = -3-6-3 = -12
h) +(+9)+(+3)+(+1) = 9+3+1 = 13
i) (-2)+(-7)+(-10)+(-3)+(-6) = -2-7-10-3-6 = -28
j) (+6)+5+1+0 = 12
k) (-7)+8+(-4)+(-2)+2+0 = -7+8-4-2+2 = -3
l) +8+(-8)+7+(-7)+0+1 = 8-8 + 7-7 + 1 = 1
m) 0+(-11) = -11
