1
What comes next: 108, 96, 84, 72, __ =
2
64, 52, 40, 28. What is the rule? =
3
What comes next: 22, 33, 44, 55, __ =
4
Fill in the blanks: 10, __, 26, 34, __ =
5
Fill in: 22, 33, 44, 55, 66, __ =
6
Fill in the blanks: 7, __, 21, 28, __ =
7
What comes next: 128, 120, 112, 104, __ =
8
Fill in: 18, 27, 36, 45, 54, __ =
9
Fill in: 7, 14, 21, 28, 35, __ =
10
Fill in the blanks: 4, 13, __, 31, __ =
11
Fill in: 22, 33, 44, 55, 66, __ =
12
71, 60, 49, 38. What is the rule? =
13
What comes next: 90, 81, 72, 63, __ =
14
Fill in: 27, 36, 45, 54, 63, __ =
15
Fill in: 18, 27, 36, 45, 54, __ =
16
What comes next: 135, 126, 117, 108, __ =
17
Fill in the blanks: 4, __, __, 31, 40 =
18
86, 77, 68, 59. What is the rule? =
19
Fill in the blanks: 4, __, __, 31, 40 =
20
What comes next: 84, 96, 108, 120, __ =