Start learning →

CBSE Class 10 Real Numbers and Polynomials — practice questions — page 4

Explore 100 free Real Numbers and Polynomials questions in CBSE Class 10 Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Real Numbers and Polynomials with Quill →

Real Numbers and Polynomials questions and exercises with answers

Showing questions 91–100 of 100.

Prime or composite?Read the answer and worked solution →True or false: real numbersRead the answer and worked solution →Which one does NOT belong?Read the answer and worked solution →Match each polynomial to its degreeRead the answer and worked solution →Key in the degreeRead the answer and worked solution →Key in the number theory answerRead the answer and worked solution →Match each number theory theorem with its foundational statement:Read the answer and worked solution →Match each decimal expansion criterion with the prime factors of denominator q (in simplest form p/q):Read the answer and worked solution →Match each arithmetic pair with its highest common factor (HCF):Read the answer and worked solution →Match each real number category with its mathematical example:Read the answer and worked solution →

Worked practice questions

Prime or composite?

Read exercise and reference answers
Items
  1. Item
    2
    Category
    Prime
  2. Item
    11
    Category
    Prime
  3. Item
    23
    Category
    Prime
  4. Item
    4
    Category
    Composite
  5. Item
    253
    Category
    Composite
  6. Item
    1771
    Category
    Composite
Categories
  1. Item
    Prime
  2. Item
    Composite
Instructions
Tap a number, then tap what kind of number it is.
_Source: syllabus Maths Ch1 Real Numbers, 1.2 The Fundamental Theorem of Arithmetic_

Open this exercise →

True or false: real numbers

Read exercise and reference answers
Questions
  1. Statement is true
    Yes
    Statement
    Every composite number can be written as a product of primes.
  2. Statement is true
    No
    Statement
    There are only finitely many prime numbers.
  3. Statement is true
    Yes
    Statement
    253 factorises as 11 times 23.
  4. Statement is true
    Yes
    Statement
    Whether a fraction terminates depends on the prime factors of its denominator.
Instructions
Decide whether each statement about real numbers is true or false.
_Source: syllabus Maths Ch1 Real Numbers, 1.2 The Fundamental Theorem of Arithmetic_

Open this exercise →

Which one does NOT belong?

Read exercise and reference answers
Questions
  1. Items
    1. 9
    2. 2
    3. 3
    4. 7
    Reason
    9 is composite because it is 3 times 3. The other three are prime.
    Odd item
    9
  2. Items
    1. 11 x 23
    2. 12 x 21
    3. 2 x 2
    4. 3 x 7 x 11
    Reason
    12 and 21 are not prime, so this is not a prime factorisation. The other three are products of primes.
    Odd item
    12 x 21
Instructions
Tap the item that does not belong with the rest.
_Source: syllabus Maths Ch1 Real Numbers, 1.2 The Fundamental Theorem of Arithmetic_

Open this exercise →

How to practise

  1. Choose a Real Numbers and Polynomials question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Real Numbers and Polynomials practice for CBSE Class 10. Read explanations as you go. No signup form needed to start.

Practise Real Numbers and Polynomials →

More Mathematics topics

Introduction to TrigonometryMensuration: Surface Areas & VolumesArithmetic ProgressionStatistics and ProbabilityCoordinate GeometryLinear Equations in Two VariablesQuadratic EquationsTriangles and Circles