E. Using the number line below, illustrate the following.
13. moving 8 steps backward.
-10 -9
-8 -7
-6
-5
-2
0 1 2 3 4
5 6 7
8
9
10
14. The sum of +5 and +3.
C +
!
-10 -9
8 -7
-6
-4
3
0 1 2 3 4
5
6 7
8 9
10
15. The difference of +7 and -5.
-10 9 6 7 6 5 4
-3 -2 -1
0
2 3 4
5 6 7 8 9
10​