You must be thinking of physics and other sciences. Mathematics has very little to do with the real world and can be better described as a game, similar to chess, but much more complex. It's no wonder it now went the way of chess, go and similar games

> Mathematics has very little to do with the real world

But it's a construction based on very basic properties of the real world, at least on those properties we accept and perceive as very general and we use them as building blocks.