Class 10 Maths Chapter 1 on Real Numbers covers Euclid’s Division Lemma the Fundamental Theorem of Arithmetic and properties of rational and irrational numbers. It also explores decimal expansions and their types. This chapter is crucial for understanding number systems and solving problems related to HCF and LCM. Mastery of these concepts is vital for CBSE Exam 2024-25 as it builds a strong foundation for advanced mathematics and practical applications in real life.