pragma solidity ^0.4.24;

contract Arithmetic{
    uint256 public storedValue; //256 bits unsigned integer
  // Constructor function. Runs once when the contract is deployed
  // Add any initialization operations here.

    constructor() public{
        storedValue = 100;
    }

    function add(uint256 number) public {
        storedValue = storedValue + number;
    }

    function subtract(uint256 number) public {
        storedValue = storedValue - number;
    }

    function multiplication(uint256 number) public {
        storedValue = storedValue * number;
    }

    function division(uint256 number) public {
        storedValue = storedValue / number;
    }

}