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Formula Sheet

Real Numbers

Jammu & Kashmir Board · Class 10 · Mathematics

All formulas from Real Numbers in Jammu & Kashmir Board Class 10 Mathematics. Key equations, constants, and identities for board exam preparation.

116 questions50 flashcards5 concepts

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A Venn diagram illustrating the classification of real numbers into rational and irrational numbers, with further subdivisions for rational numbers (integers, whole numbers, natural numbers).
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9 Formulas · 3 Sections

Formulas

2. Fundamental Theorem of Arithmetic

32760 = 2^3 × 3^2 × 5 × 7 × 13

123456789 = 3^2 × 3803 × 3607

3. Theorem 1.2 and Irrationality Proofs

a^2 = (p1p2...pn)(p1p2...pn) = p1^2p2^2...pn^2

Let p be a prime number. If p divides a^2, then p divides a, where a is a positive integer.

4. HCF and LCM by Prime Factorisation

HCF(a, b) × LCM(a, b) = a × b

HCF(6, 20) = 2

LCM(6, 20) = 60

96 = 2^5 × 3, 404 = 2^2 × 101

HCF(96, 404) = 4

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Frequently Asked Questions

What are the important topics in Real Numbers for Jammu & Kashmir Board Class 10 Mathematics?
Key topics in Real Numbers include How to Correctly Identify Rational vs Irrational Numbers, Real Numbers Chapter — Complete Concept Map, Real Numbers — Complete Chapter Overview. These are the concepts Jammu & Kashmir Board Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Real Numbers — Jammu & Kashmir Board Class 10 Mathematics?
Understand the core concepts first, then work through the 116 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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