1
Fill in: 22, 33, 44, 55, 66, __ =
2
7, 19, 31, 43. What is the rule? =
3
9, 17, 25, 33. What is the rule? =
4
49, 40, 31, 22. What is the rule? =
5
What comes next: 180, 192, 204, 216, __ =
6
99, 90, 81, 72. What is the rule? =
7
41, 34, 27, 20. What is the rule? =
8
Fill in: 0, 8, 16, 24, 32, __ =
9
Fill in: 18, 27, 36, 45, 54, __ =
10
96, 88, 80, 72. What is the rule? =
11
What comes next: 84, 91, 98, 105, __ =
12
Fill in: 8, 16, 24, 32, 40, __ =
13
83, 72, 61, 50. What is the rule? =
14
What comes next: 152, 144, 136, 128, __ =
15
Fill in the blanks: 8, __, 22, __, 36 =
16
Fill in the blanks: 9, 16, __, 30, __ =
17
What comes next: 42, 49, 56, 63, __ =
18
Fill in the blanks: 1, __, 19, __, 37 =
19
Fill in the blanks: 1, __, 25, __, 49 =
20
What comes next: 88, 99, 110, 121, __ =