Solve for the value of N.
11. 31 – N ÷ 5 = 29

10
15
20
25

12. 72 ÷ 9 + N = 9

1
2
3
4

13. 58 × 2 – N = 31

81
83
84
85

14. 5+ 21 ÷ 3 = N

7
6
5
4

15. 9 of N X N =

3
4
5
6