Questions
1.
Difference between 9 and 5
2.
Difference between 8 and 3
3.
Difference between 12 and 7
4.
Difference between 15 and 9
5.
Difference between 10 and 4
6.
Difference between 20 and 13
7.
Difference between 16 and 8
8.
Difference between 18 and 11