1
9, 19, 29, 39. What is the rule? =
2
80, 75, 70, 65. What is the rule? =
3
6, 16, 26, 36. What is the rule? =
4
What comes next: 17, 27, 37, 47, __ =
5
What comes next: 90, 85, 80, 75, __ =
6
What comes next: 20, 18, 16, 14, __ =
7
7, 12, 17, 22. What is the rule? =
8
What comes next: 16, 21, 26, 31, __ =
9
What comes next: 34, 32, 30, 28, __ =
10
Fill in: 20, 30, 40, 50, 60, __ =
11
65, 60, 55, 50. What is the rule? =
12
Fill in: 15, 20, 25, 30, 35, __ =
13
What comes next: 170, 160, 150, 140, __ =
14
Fill in: 5, 10, 15, 20, 25, __ =
15
57, 47, 37, 27. What is the rule? =
16
1, 3, 5, 7. What is the rule? =
17
Fill in: 10, 20, 30, 40, 50, __ =
18
What comes next: 28, 26, 24, 22, __ =
19
Fill in: 5, 10, 15, 20, 25, __ =
20
Fill in: 0, 5, 10, 15, 20, __ =