Getting to the same number

When I think I’m being very clear and someone doesn’t get me I’m reminded of the example of getting to the number four. My brain and worldview is 2+2=4. Simple. Yet another person may say 8-4=4 or 2×2=4. Then I realise there is lots of ways of arriving at the same number and that I made the assumption there was only one way. I think of this often when someone else has a different worldview but may be agreeing with the same outcome. Does it always matter how we arrive at four?