Class 8 Maths – Chapter 7

Cubes & Cube Roots

Worksheet – Practice Questions

🟢 Section A – Very Short Answer

1. Find the cube of 4.
2. Write the cube of 10.
3. Is 125 a perfect cube?
4. Find the cube root of 27.
5. Find the cube root of 1.

🟡 Section B – Short Answer

1. Find the cube of 7.
2. Find the cube root of 64.
3. Is 216 a perfect cube? Give reason.
4. Find the cube root of 343.
5. Write any two perfect cubes.

🔵 Section C – Long Answer

1. Find the cube root of 512 by prime factorisation.
2. Check whether 729 is a perfect cube. If yes, find its cube root.
3. Find the smallest number by which 432 must be multiplied to make it a perfect cube.

📌 Instructions for Students

• Write steps clearly
• Use prime factorisation where required
• Underline final answers