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Concept Maps

Number System — Concept Maps

Gujarat Board · Class 9 · Mathematics

3 concept maps of Number System for Gujarat Board Class 9 Mathematics, each also written out as a text outline.

45 questions28 flashcards5 formulas & key relations5 concepts

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A nested Venn diagram illustrating the relationships between natural numbers (N), integers (Z), rational numbers (Q), and real numbers (R) as subsets of each other.
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3 Concept Maps

Number System Overview

Number System Overview

The map in words

  • Real Numbers
    • Rational Numbers
      • Integers
        • Natural Numbers
        • Negative Integers
        • Zero
      • Fractions
        • Proper Fractions
        • Improper Fractions
    • Irrational Numbers
      • Square Roots
        • Non-perfect Squares
      • Pi
      • Other Irrationals
    • Properties
      • Terminating Decimals
      • Non-terminating Recurring
      • Non-terminating Non-recurring

Mind map showing the hierarchical classification of real numbers and how each type relates to others

Mind map showing the hierarchical classification of real numbers and how each type relates to others

The map in words

  • Real Numbers
    • Rational Numbers
      • Integers
        • Whole Numbers
          • Natural Numbers
      • Non-integer Rationals
        • Fractions
        • Decimals
    • Irrational Numbers
      • Square Roots
      • Cube Roots
      • π and e

Flowchart showing the decision process to determine if a number is rational

Flowchart showing the decision process to determine if a number is rational

The map in words

  • Is this a number?
    • Yes: Can it be written as p/q?
      • Yes, p and q are integers: q ≠ 0?
        • Yes: Rational Number
        • No: Not Defined
      • No: Not Rational

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Frequently Asked Questions

What are the important topics in Number System for Gujarat Board Class 9 Mathematics?
Key topics in Number System include Types of Numbers – The Complete Picture, Irrational Numbers and Their Properties, Decimal Expansions of Real Numbers, Operations on Real Numbers. Study these first, then practise questions on each for Class 9 exams.
What do the concept maps for Number System show?
The 3 maps show how the ideas in Number System connect: Number System Overview; Mind map showing the hierarchical classification of real numbers and how each type relates to others. Each map is also written out as an outline on this page.
How should I revise Number System for Class 9 exams?
Learn the core ideas first, then work through the 45 practice questions on Number System. Revise 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.

More resources for Number System

All Gujarat Board Class 9 Mathematics Concept Maps

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