1
Fill in: 18, 24, 30, 36, 42, __ =
2
What comes next: 24, 27, 30, 33, __ =
3
3, 6, 9, 12. What is the rule? =
4
Fill in: 6, 9, 12, 15, 18, __ =
5
What comes next: 102, 108, 114, 120, __ =
6
Fill in: 8, 12, 16, 20, 24, __ =
7
What comes next: 36, 32, 28, 24, __ =
8
Fill in: 9, 12, 15, 18, 21, __ =
9
What comes next: 64, 68, 72, 76, __ =
10
Fill in: 18, 24, 30, 36, 42, __ =
11
87, 81, 75, 69. What is the rule? =
12
Fill in: 4, 8, 12, 16, 20, __ =
13
Fill in: 3, 6, 9, 12, 15, __ =
14
What comes next: 48, 52, 56, 60, __ =
15
What comes next: 64, 60, 56, 52, __ =
16
51, 47, 43, 39. What is the rule? =
17
What comes next: 30, 36, 42, 48, __ =
18
What comes next: 78, 72, 66, 60, __ =
19
What comes next: 60, 56, 52, 48, __ =
20
Fill in: 6, 12, 18, 24, 30, __ =