Help I need help quick

Question

1. Find the difference
1-(-3)
a.-4
b.-2
c.2
d.4

2. -9--2
a.-11
b.-7
c.7
d.11

3.-9--(-5)
a.-14
b.-4
c.4
d.14

4.-64--(-83)
a.-147
b.-19
c.19
d.29

5.Kim and her sister play a game. At the end of the game, Kim has 65 points and her sister has -12 points. What is the difference Kim's score and her sisters score?
a.53
b.77
c.-53
d.-77

Answer 1

PLEASE!!!

Answer 2

when subtracting a negative, just add instead. For example,
1-(-3) = 1+3 = 4
Now do the others in like wise.

Answer 3

I got it