# Subtract multiple expressions

> Supported in: Batch, Faster, Streaming

Calculates the difference between a number and all input columns.

**Expression categories:** Numeric

## Declared arguments

* **Expressions list:** List of expressions to be used for subtraction.<br>*List\<Expression\<Numeric>>*
* **Value to be subtracted:** Expression to subtract from.<br>*Expression\<Numeric>*

**Output type:** *Numeric*

## Examples

### Example 1: Base case

**Argument values:**

* **Expressions list:** \[`col_b`, `col_c`]
* **Value to be subtracted:** `col_a`

| col\_a | col\_b | col\_c | **Output** |
| ----- | ----- | ----- | ----- |
| 5 | 3 | 2 | 0 |
| 2 | 4 | 0 | -2 |
| -2 | -4 | -2 | 4 |

***

### Example 2: Base case

**Argument values:**

* **Expressions list:** \[`col_b`]
* **Value to be subtracted:** `col_a`

| col\_a | col\_b | **Output** |
| ----- | ----- | ----- |
| *null* | *null* | *null* |
| 1 | *null* | *null* |
| *null* | 10 | *null* |

***