2-2

0

Reason: 2 minus 2 equals 0. You can also view it as 2 + (-2) = 0, or move 2 steps left from 2 on a number line to reach 0.

If you meant a different thing by "2-2" (like a problem label from a workbook, a modular arithmetic question, or a specific chapter exercise), please provide a bit more context and I’ll tailor the solution.