Number Sequences

What’s inside

• What number comes next in the sequence 2, 5, 10, 17, 26, ...?
• What number comes next in the sequence 81, 27, 9, 3, ...?
• What number comes next in the sequence 1, 1, 2, 3, 5, 8, ...?
• What number comes next in the sequence 4, 7, 13, 25, 49, ...?
• What number comes next in the sequence 2, 6, 12, 20, 30, ...?
• What number comes next in the sequence 3, 8, 15, 24, 35, ...?
• The next number in the sequence 5, 10, 20, 40, ... is 80.
• The next number in the sequence 1, 4, 9, 16, 25, ... is 36.