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Class 9 Maths Number System MCQs with Answer
By Karan Singh Bisht
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Updated on 11 Sep 2025, 13:44 IST
Want to master Class 9 Maths Chapter 1 – Number System MCQs? Our carefully curated set of multiple-choice questions is aligned with the latest CBSE (2025–26) syllabus and NCERT solutions, ensuring complete exam readiness. These MCQs are designed to match the current exam pattern, giving you practice with questions similar to those you’ll encounter in the actual exam.
Explore a wide range of MCQs for Class 9 Maths Chapter 1 – Number System, covering all the essential concepts. Whether you’re revising fundamentals or testing yourself on advanced topics, these questions are designed to enhance your problem-solving skills and boost your confidence.
To make learning easier, we’ve included detailed explanations for selected questions, helping you understand the reasoning behind each answer. This ensures a deeper grasp of the core principles of the Number System.
Key Features of Class 9 Number System MCQs:
- MCQs aligned with the latest CBSE class 9 syllabus.
- Clear, concise explanations for tricky concepts.
- Designed to strengthen problem-solving skills and build confidence.
- Answers provided for effective practice and self-assessment.
- Regular practice helps you excel in exams.
Don’t forget to check out the Important Questions for Class 9 Maths to further consolidate your understanding of this chapter. The more you practice these Number System MCQs, the better prepared you’ll be to master the topic and score top marks. Start practicing today with our carefully curated Class 9 Maths Chapter 1 MCQs, and sharpen your skills for the upcoming exams!
Number System Class 9 MCQs with Answer PDF Download
Welcome to our Class 9 Number System MCQ PDF. This resource is specially designed to help students master the Number System. Inside, you’ll find carefully curated MCQs from Chapter 1 of Class 9 Maths, covering all the key concepts.
Use these Class 9 Number System MCQs to test your knowledge, strengthen your understanding, and boost your problem-solving skills. Get ready to tackle the Number System MCQs for Class 9 and improve your confidence with our easy-to-use practice material designed for effective exam preparation.
Class 9 Maths Number System MCQs with Solutions
Q. Which of the following is a prime number?
A) 12
B) 17
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C) 28
D) 33
Solution: B) 17
Q. Which of the following is a composite number?
A) 2
B) 3
C) 4
D) 5
Solution: C) 4
Q. The number 0 is a:
A) Natural number
B) Whole number
C) Neither natural nor whole number
D) Both natural and whole number
Solution: B) Whole number
Q. Which of the following is an irrational number?
A) √9
B) √16
C) √2
D) √25
Solution: C) √2
Q. Which property states that a + b = b + a for any two real numbers a and b?
A) Commutative property of addition
B) Associative property of addition
C) Distributive property
D) Identity property of addition
Solution: A) Commutative property of addition
| MCQ Questions for Class 9 Subject-wise | |
| MCQ Questions for Class 9 Maths | MCQ Questions for Class 9 Science |
| MCQ Questions for Class 9 Social Science | MCQ Questions for Class 9 Hindi |
Q. What is the smallest prime number?
A) 0
B) 1
C) 2
D) 3
Solution: C) 2
Q. Which of the following is a terminating decimal?
A) 1/3
B) 1/4
C) 1/5
D) 1/7
Solution: B) 1/4
Q. What is the value of √81?
A) 7
B) 8
C) 9
D) 10
Solution: C) 9
Q. Which property states that a × (b + c) = (a × b) + (a × c)?
A) Commutative property of multiplication
B) Associative property of multiplication
C) Distributive property
D) Identity property of multiplication
Solution: C) Distributive property
Q. Which of the following is a co-prime pair?
A) (8, 12)
B) (9, 15)
C) (6, 10)
D) (4, 6)
Solution: B) (9, 15)
Q. The number 1 is a:
A) Prime number
B) Composite number
C) Neither prime nor composite
D) Both prime and composite
Solution: C) Neither prime nor composite
Q. What is the value of 5/0?
A) 0
B) 5
C) Undefined
D) 1
Solution: C) Undefined
Q. Which of the following is a rational number?
A) √3
B) √4
C) √5
D) √6
Solution: B) √4
Q. What is the LCM of 6 and 8?
A) 12
B) 14
C) 16
D) 18
Q. Which property states that a × (b × c) = (a × b) × c?
A) Commutative property of multiplication
B) Associative property of multiplication
C) Distributive property
D) Identity property of multiplication
Solution: B) Associative property of multiplication
Q. What is the value of (-1) × (-1)?
A) 0
B) 1
C) -1
D) Undefined
Solution: B) 1
Q. Which of the following is a prime factor of 24?
A) 2
B) 3
C) 4
D) 5
Solution: A) 2
Q. What is the value of 0/5?
A) 0
B) 1
C) 5
D) Undefined
Solution: A) 0
Q. Which of the following is an even number?
A) 13
B) 14
C) 15
D) 16
Solution: B) 14
Q. Which property states that a × 0 = 0?
A) Commutative property of multiplication
B) Associative property of multiplication
C) Distributive property
D) Zero property of multiplication
Solution: D) Zero property of multiplication
Q. What is the value of 3/0?
A) 0
B) 3
C) Undefined
D) Infinity
Solution: C) Undefined
More Resources for Class 9 NCERT
- NCERT Solutions for Class 9 Maths
- NCERT Solutions for Class 9 Science
- NCERT Solutions for Class 9 Social Science
- NCERT Solutions for Class 9 English
Q. Which of the following is an odd number?
A) 12
B) 13
C) 14
D) 15
Solution: B) 13
Q. What is the value of 7 × 0?
A) 0
B) 7
C) Undefined
D) 1
Solution: A) 0
Q. Which property states that a + 0 = a for any real number a?
A) Commutative property of addition
B) Associative property of addition
C) Identity property of addition
D) Distributive property
Solution: C) Identity property of addition
Q. What is the value of (-1) × 0?
A) 0
B) -1
C) 1
D) Undefined
Solution: A) 0
Q. Which property states that a × 1 = a for any real number a?
A) Commutative property of multiplication
B) Associative property of multiplication
C) Identity property of multiplication
D) Distributive property
Solution: C) Identity property of multiplication
Q. What is the value of 0 × (-5)?
A) 0
B) 5
C) -5
D) Undefined
Solution: A) 0
Q. Which property states that a × b = b × a for any two real numbers a and b?
A) Commutative property of multiplication
B) Associative property of multiplication
C) Distributive property
D) Identity property of multiplication
Solution: A) Commutative property of multiplication
Q. What is the value of 0/0?
A) 0
B) 1
C) Undefined
D) Infinity
Solution: C) Undefined
Q. Which property states that a + (b + c) = (a + b) + c?
A) Commutative property of addition
B) Associative property of addition
C) Distributive property
D) Identity property of addition
Solution: B) Associative property of addition
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MCQs on Class 9 Maths Number System MCQs with Answer
Where can I download Class 9 Maths Number System MCQs with answers?
You can easily download the chapter-wise MCQs for Class 9 Maths Number System with answers from Infinity Learn. They provide free, structured resources aligned with the NCERT syllabus.
Where can I find reliable Number System MCQs for practice?
For accurate and syllabus-based MCQs, Infinity Learn is the go-to platform. It offers chapter-wise questions along with solutions to help you revise effectively.
How should I prepare for Class 9 Maths Number System MCQs?
Start by thoroughly reading the NCERT textbook for the Number System chapter, then practice the MCQs provided by Infinity Learn regularly. Revising and solving these questions will strengthen your understanding and improve accuracy.
Are the Number System MCQs on Infinity Learn aligned with CBSE exams?
Yes, mcqs available on Infinity Learn follow the latest NCERT curriculum and CBSE exam pattern, making them ideal for preparation and practice.