1
39, 33, 27, 21. What is the rule? =
2
Fill in: 0, 4, 8, 12, 16, __ =
3
68, 62, 56, 50. What is the rule? =
4
57, 51, 45, 39. What is the rule? =
5
Fill in: 9, 12, 15, 18, 21, __ =
6
Fill in: 12, 16, 20, 24, 28, __ =
7
Fill in: 6, 9, 12, 15, 18, __ =
8
9, 12, 15, 18. What is the rule? =
9
Fill in: 9, 12, 15, 18, 21, __ =
10
4, 8, 12, 16. What is the rule? =
11
What comes next: 51, 48, 45, 42, __ =
12
Fill in: 9, 12, 15, 18, 21, __ =
13
2, 6, 10, 14. What is the rule? =
14
94, 91, 88, 85. What is the rule? =
15
What comes next: 33, 36, 39, 42, __ =
16
What comes next: 12, 15, 18, 21, __ =
17
6, 10, 14, 18. What is the rule? =
18
58, 52, 46, 40. What is the rule? =
19
79, 76, 73, 70. What is the rule? =
20
Fill in: 0, 6, 12, 18, 24, __ =