1
Fill in the blanks: 1, __, 23, __, 45 =
2
Fill in: 14, 21, 28, 35, 42, __ =
3
Fill in: 18, 27, 36, 45, 54, __ =
4
Fill in the blanks: 9, 20, __, 42, __ =
5
38, 27, 16, 5. What is the rule? =
6
Fill in the blanks: 9, __, 27, __, 45 =
7
Fill in the blanks: 1, 9, __, __, 33 =
8
What comes next: 70, 77, 84, 91, __ =
9
Fill in the blanks: 9, __, __, 30, 37 =
10
What comes next: 64, 72, 80, 88, __ =
11
32, 23, 14, 5. What is the rule? =
12
What comes next: 16, 24, 32, 40, __ =
13
66, 57, 48, 39. What is the rule? =
14
What comes next: 105, 112, 119, 126, __ =
15
Fill in the blanks: 10, __, 28, __, 46 =
16
9, 18, 27, 36. What is the rule? =
17
Fill in: 11, 22, 33, 44, 55, __ =
18
Fill in the blanks: 9, 18, __, __, 45 =
19
45, 38, 31, 24. What is the rule? =
20
Fill in: 18, 27, 36, 45, 54, __ =