Question

-11 - (-4)

-6 - 2

-5 - (-25)

22 - (-9)

3 - 14

-7 - (-1)
8 - (-13)
72-60
-100 - (-99)
-4 - 10
-3 - (-12)
50 - 50

Answer 1

just add or subtract them..

Answer 2

if the signs are same , you have to add..if different you have to subtract

Answer 3

-7
-8
20
29
-11
-6
21
12
-1
-14
9
0