Add the following numbers using 4-bit representation using 2s complement addition.

State whether the result is positive, negative, or overflow.

a) -3 + -6

b) -8 + -8

c) +5 + +6

d) +7 + +7

e) +2 + +4

f) +2 + -4

g) -2 + -4

h) +4 + +5

i) -1 + -2

j) +9 + +8