What comes next in series 1 2 0 3 -1?

Answer 1

The series appears to be alternating between adding and subtracting numbers. The pattern seems to be adding 1, then subtracting 2, then adding 3, and finally subtracting 4. Following this pattern, the next number in the series would be 1 (subtracting 4 from -1).

Answer 2

1, 2, 0, 3, -1, 4, -2, 5, -3, 6