Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

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Unit 2 Worksheet 2 | DAV SOLUTIONS CLASS 8 Secondary Mathematics

1. Find the cube roots of the following by prime factorisation:
(i) 5832 (ii) 1728 (iii) 216000 (iv) 21952

Answer 1:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics
Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

2. Find the cube roots of the following integers:
(i) — 1728 (ii) — 2744000 (iii) — 474552 (iv) — 5832

Answer 2:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics
Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

3. Evaluate:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

Answer 3:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

4. Find the cube roots of the following rational numbers:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

Answer 4:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

5. By which smallest number must 5400 be multiplied to make it a perfect cube?

Answer 5:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

6. Find the smallest number by which 16384 be divided so that the quotient may be a perfect cube.

Answer 6:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

7. Find the cube root of the following numbers through estimation:
(i) 10648 (ii) 15625
(iii) 110592 (iv) 91125

Answer 7:

Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics
Chapter 2 | Cube and Cube Roots Class-8 DAV Secondary Mathematics

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