# Subtract numbers > Supported in: Batch, Faster, Streaming Subtract one number from another number. **Expression categories:** Numeric ## Declared arguments * **Left:** Left number.
*Expression\* * **Right:** Right number.
*Expression\* **Output type:** *Numeric* ## Examples ### Example 1: Base case **Argument values:** * **Left:** `col_a` * **Right:** `col_b` | col\_a | col\_b | **Output** | | ----- | ----- | ----- | | 32 | 4 | 28 | | -5 | -3 | -2 | ***