> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Uint.plus

> Add two Uint256 values with wrapping overflow

<Card title="Try it Live" icon="play" href="https://playground.tevm.sh?example=primitives/uint.ts">
  Run Uint examples in the interactive playground
</Card>

<Tabs />

<Warning title="Wrapping Behavior">
  Addition wraps on overflow: (a + b) mod 2^256

  Matches Solidity and EVM behavior.
</Warning>

## See Also

* [minus](/primitives/uint256/minus) - Subtraction
* [Arithmetic operations](/primitives/uint256/arithmetic) - Full arithmetic reference