1
Fill in: 12, 16, 20, 24, 28, __ =
2
Fill in: 6, 9, 12, 15, 18, __ =
3
50, 47, 44, 41. What is the rule? =
4
What comes next: 15, 18, 21, 24, __ =
5
9, 12, 15, 18. What is the rule? =
6
What comes next: 60, 56, 52, 48, __ =
7
What comes next: 44, 40, 36, 32, __ =
8
Fill in: 0, 3, 6, 9, 12, __ =
9
2, 6, 10, 14. What is the rule? =
10
4, 7, 10, 13. What is the rule? =
11
33, 27, 21, 15. What is the rule? =
12
Fill in: 0, 6, 12, 18, 24, __ =
13
Fill in: 6, 9, 12, 15, 18, __ =
14
9, 13, 17, 21. What is the rule? =
15
What comes next: 36, 32, 28, 24, __ =
16
What comes next: 36, 33, 30, 27, __ =
17
What comes next: 64, 60, 56, 52, __ =
18
5, 11, 17, 23. What is the rule? =
19
Fill in: 3, 6, 9, 12, 15, __ =
20
Fill in: 6, 12, 18, 24, 30, __ =