"Poly maths" refers to the study of multiple branches of mathematics. Synonyms for this term include interdisciplinary mathematics, multi-disciplinary math, and cross-curricular mathematics. These terms indicate a focus on mathematics that spans across different academic disciplines and practical applications, rather than being limited to one specific area of study. Additionally, the terms like "multifaceted math" or "eclectic mathematics" could be used to describe this broad approach to math instruction. Regardless of the exact terminology used, the idea of exploring different aspects of mathematics in a comprehensive and integrated way can lead to a deeper understanding of the subject and its real-world applications.