Shows that a single computation preserves the decimals while a multistep computation not

DecimalTest.sol

pragma solidity 0.4.24;
import 'https://github.com/OpenZeppelin/openzeppelin-solidity/contracts/math/SafeMath.sol';

contract TestDecimals{
    uint public singleComputation;
    uint public multiStepComputation;
    uint public safeMath;
    using SafeMath for uint;
    
    constructor(){
        singleComputation = (123456 / 100 + 1) * 100;
        
        uint t1 = 123456;
        t1 = t1 / 100;
        multiStepComputation = (t1 + 1) * 100;
        
        safeMath =  uint(123456).div(100).add(1).mul(100);
        
    }
}