Practice Exercise 1.1 - 1.3.1 | 1. Rational Numbers | CBSE 8 Mathematics
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Practice Questions

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Question 1

Easy

What is the additive identity for rational numbers?

💡 Hint: What number do you add to another number without changing it?

Question 2

Easy

What happens when you multiply any rational number by 1?

💡 Hint: Try recalling what multiplying by the identity does.

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 represents the identity element for addition?

  • 1
  • 0
  • 2

💡 Hint: Consider which number keeps other numbers unchanged when added.

Question 2

True or false: The product of any rational number and zero is the number itself.

  • True
  • False

💡 Hint: Think about what happens when you multiply by zero.

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Challenge Problems

Push your limits with challenges.

Question 1

Prove that 5 × 1 = 5 and 5 + 0 = 5 using examples of your choice. Choose two different rational numbers.

💡 Hint: Consider rational numbers you've learned, like fractions.

Question 2

If a rational number x is such that x + 0 = x, demonstrate the relationship using simple fractions.

💡 Hint: Try with various rational numbers to see the consistency.

Challenge and get performance evaluation