1
6, 9, 12, 15. What is the rule? =
2
5, 8, 11, 14. What is the rule? =
3
Fill in: 3, 6, 9, 12, 15, __ =
4
Fill in: 4, 8, 12, 16, 20, __ =
5
Fill in: 6, 9, 12, 15, 18, __ =
6
Fill in: 6, 9, 12, 15, 18, __ =
7
77, 71, 65, 59. What is the rule? =
8
10, 13, 16, 19. What is the rule? =
9
Fill in: 0, 6, 12, 18, 24, __ =
10
What comes next: 52, 48, 44, 40, __ =
11
41, 38, 35, 32. What is the rule? =
12
1, 5, 9, 13. What is the rule? =
13
What comes next: 36, 32, 28, 24, __ =
14
2, 5, 8, 11. What is the rule? =
15
Fill in: 4, 8, 12, 16, 20, __ =
16
55, 52, 49, 46. What is the rule? =
17
What comes next: 18, 21, 24, 27, __ =
18
What comes next: 42, 45, 48, 51, __ =
19
81, 77, 73, 69. What is the rule? =
20
100, 97, 94, 91. What is the rule? =