Class 9
Mathematics
Chapter 3
Ganita Prakash (latest NCERT)
The World of Numbers
Free NCERT practice questions for Class 9 Mathematics, Chapter 3 — 223 questions across MCQs, short-answer, long-answer, numericals and more. Download a printable PDF worksheet in seconds. No signup, no ads, no paywall.
What this chapter covers
Class 9 Maths Chapter 3 'The World of Numbers' completes the picture of real numbers. Students revisit natural, whole, integer and rational numbers, formally meet irrational numbers, and place every real number on the number line. The chapter develops the decimal expansion of rational and irrational numbers, basic operations on irrationals (including conjugates and rationalising the denominator), and the laws of exponents for real bases.
Key topics in this chapter
- Rational and irrational numbers
- Decimal expansions and their types
- Representing irrationals on the number line
- Operations on irrationals; rationalising the denominator
- Laws of exponents for real numbers
Frequently asked questions
What is included in Class 9 Mathematics Chapter 3 (The World of Numbers)?
This chapter has 223 NCERT-aligned practice questions covering all the concepts from the Ganita Prakash textbook's Chapter 3. Questions span easy, medium and hard levels across 7 different formats so students get a balanced practice set.
Are these questions based on the new NCERT Ganita Prakash textbook?
Yes. Every question on Practico for Class 9 Mathematics is mapped directly to the latest NCERT Ganita Prakash textbook (the one CBSE schools are using now). The chapter numbers and chapter titles match the textbook exactly.
How many questions can I practice from this chapter?
223 questions are available right now. You can pick how many you want at a time — generate 10 quick MCQs, a 30-question worksheet, or a full exam-style mix. Each generation gives you a different random set.
Can I download a free PDF worksheet for The World of Numbers?
Yes — completely free, no sign-up required. Pick this chapter, choose the number of questions and types you want, and download a printable PDF (with or without answers) in one click.
What question types are available?
This chapter has assertion reason, fill blank, long, mcq, numerical, short, true false. You can mix any combination, or filter to just the type you want to practice — for example, only numericals to drill calculation, or only short-answer questions for exam revision.
Is Practico aligned with CBSE exam patterns?
Yes. Practico questions are tagged by marks (1, 2, 3, 5) and by difficulty (Easy/Medium/Hard) just like CBSE exam blueprints, so you can build a worksheet that mirrors a real unit test or annual exam.