Decimal expansion refers to expressing a number in its decimal form by dividing it into parts based on powers of ten. It includes whole numbers and fractions written after a decimal point. For example 3.14 represents three units one-tenth and four-hundredths. It helps represent numbers precisely and is useful in calculations involving parts of a whole.
Class 10 Maths Chapter 1 focuses on Real Numbers covering topics like Euclid’s Division Lemma prime factorization and the Fundamental Theorem of Arithmetic. It explores rational and irrational numbers along with their decimal expansions. This chapter strengthens concepts of HCF and LCM while preparing students for CBSE Exam 2024-25. Understanding these fundamentals is crucial for solving problems and excelling in mathematics.
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