# The Number block

<img alt="The Number block" src="https://assets.postman.com/postman-docs/v11/flows-reference-blocks-number-v11.53.2.jpg" width="280px" />

The **Number** block sends the specified whole or decimal number. The number can be positive or negative. The **Number** block is often [inserted](/docs/postman-flows/reference/blocks/overview/#insert-data-blocks-into-other-blocks) into other blocks that perform math operations or assign values to numeric parameters.

## Output

The **Number** block's single output port sends the specified number.

## Setup

When you create a **Number** block, its specified number is **0**. Click the **0** to enter a new number, or increase or decrease by clicking <img alt="Add icon" src="https://assets.postman.com/postman-docs/aether-icons/action-add-stroke-small.svg#icon" width="12px" /> or <img alt="Subtract icon" src="https://assets.postman.com/postman-docs/aether-icons/action-subtract-stroke-small.svg#icon" width="12px" />.

## Example

To see the **Number** block in an example flow, check out [Flow Snippets: Number](https://www.postman.com/postman/flows-snippets/flow/63b8b417a365885b55bc51fd).

## Related pages

For a tutorial that uses the **Number** block, see [Create a count-based loop with the Repeat block](/docs/postman-flows/tutorials/beginner/create-count-based-loop/).