For example, physics, chemistry and biology all use mathematics.
So learning math well can help you learn physics better. Especially in universities, after introducing the concept of calculus, you will find that physics is almost impossible without mathematics.
So there is a saying that the end point of physics is mathematics.
However, because mathematics itself cannot be proved by experiments, it has always been regarded as pseudoscience in the scientific community, or simply classified as philosophy. This is a bit abstruse, so people have different opinions.