Cambridge Maths subjects?

No, you don't need physics or chemistry to get into Cambridge Maths. The only subjects that matter are Maths (and Further Maths)
Taking Physics is common because its easy if you are good at Maths, and typically people are interested in both. But its absolutely not a requirement.
https://www.undergraduate.study.cam.ac.uk/courses/mathematics-ba-hons-mmath

Hi sorry if not clear. Ik its not a hard subject requirement I meant more of an informal requirement as (even though it may be correlation not causation), I havent seen anyone do econ WITHOUT phy/chem and get into Cambridge maths so I just wanna know if anyone knows if its been done before (hence the "basically make it impossible")

Absolutely not. People get in with a variety of subjects. I didn't do Physics (did Chem and French) and one of my friends did Maths, FM, Music and he got in and excelled.

Oh wow! For Cambridge maths to be certain? (Sorry for being pedantic)
If so thats great news thank you, but chem is still quantitative and your friend may be an insane exception/case. Ofc ill still try but is there any more key info I ought to know like did your friend go to a state school, contexual etc?

Hi! At the start of 6th form I wasn't really sure what I wanted to do in uni. Basically would doing economics A level instead of physics/chemistry (assuming you have A* in maths and furthermaths) basically make it impossible for a maths offer? Has anyone with econ A level without phy/chem ever gotten a Cambridge offer?