Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

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Chapter 2 | Operations on Rational Numbers | Class-7 DAV Secondary Mathematics

Operations on Rational Numbers || Unit 2 Worksheet 3

1. Multiply and express the result as a rational number in the standard form.

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answers:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics
Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics
Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

2. For the following values of x and y, verify x*y = y*x.

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics
Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics
Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

3. For the following values of x, y and z, find the products (x*y)*z and x*(y*z) and observe the result (x*y)*z = x*(y*z)

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answers:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics
Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics
Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

4. Verify the property x*(y+z) = x*y + y*z by taking-

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answers:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

5. Show that-

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

6. Show that-

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

7. Simplyfy and express the result in standard form.

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answers:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics
Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

8. Fill in the blanks.

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answers:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics