Sample questions
1.What number comes between 23 and 25?
2.What number comes just before 19?
3.What number comes between 58 and 60?
4.What number comes between 18 and 20?
5.What number comes between 10 and 12?
6.What number comes just after 23?
7.What number comes between 38 and 40?
8.What number comes just before 42?