How would that obviously be the case? I work with numbers a lot and immediately knew 550/2 = 275, didnt need to think for the fraction of a second. The systems are not equal across different people, every mind is unique.

Small example: Would you consider 10/2 = 5 system 2? I think most people wouldnt, but ask a 1st grader and they would probably need to think for a few seconds.