# 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 |
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