Practice Operations on Real Numbers - 1.4 | 1. Number Systems | CBSE 9 Mathematics
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1.4 - Operations on Real Numbers

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Is 1/2 + \( \sqrt{2} \) rational or irrational?

πŸ’‘ Hint: Remember to consider that adding a rational number to an irrational number results in an irrational number.

Question 2

Easy

What is the product of Ο€ and 2?

πŸ’‘ Hint: Think about the multiplication of rational and irrational numbers.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the result of adding a rational number and an irrational number?

  • Rational
  • Irrational
  • Undefined

πŸ’‘ Hint: Think about characteristics of irrational numbers.

Question 2

True or False: The product of two irrational numbers is always irrational.

  • True
  • False

πŸ’‘ Hint: Consider specific examples where this rule may not hold.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given irrational numbers A = \( \sqrt{7} \) and B = \( \sqrt{7} \) + \( \sqrt{3} \), classify A + B, A - B, and A * B.

πŸ’‘ Hint: Use properties of irrational numbers and explore each operation.

Question 2

If x and y are irrational numbers such that x + y = 6, what can be concluded about x and y?

πŸ’‘ Hint: Consider the definitions of rational and irrational and how they could together make a rational number.

Challenge and get performance evaluation