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CBSE Class 8 Maths Worksheet

Cubes and Cube Roots - Cubes

1.
Who was the India’s great mathematical geniuses of cubes ?
2.
A farmer has 8000 plants. He wants to plant these in such a way that the number of rows and the number of columns remain same. Find the minimum number of plants he needs more for this.
3.
Find the smallest number by which each of the 72 must be multiplied to obtain a perfect cube.
4.
Choose the correct option: Find the numbers which are not perfect cubes.
A) 900 B) 1600 C) 10000 D) All of these
5.
Complete the following: 10648 is perfect cube root of _______
6.
The volume of the cubical box is 1331 . What is its side?
7.
Find the smallest number by which each of the 256 must be multiplied to obtain a perfect cube.
8.
Find the perfect cube of 43
9.
Find the cube root of 27000 by Prime factorization
10.
Find the smallest number by which each of the 704 must be divided to obtain a perfect cube.
11.
State True/False: The cube of a single digit number may be a single digit number.
A) true B) false
12.
Show that -10648 is a perfect cube . also find the number whose cube is -10648
13.
Write the greatest two digit numbers perfect cube
14.
Show that 0.0001728 is a perfect cube . also fine the number whose cube is 0.0001728
15.
Choose the correct option: Find the numbers which are not perfect cubes.
A) 400 B) 1000 C) 46656 D) none of these
16.
Find the smallest number by which each of the 192 must be divided to obtain a perfect cube.
17.
State True/False: For any integer m , m.sq < m cube.
A) true B) false
18.
Find the perfect cube of 21
19.
Find the cube root of 91125 by Prime factorization
20.
Find the perfect cube of 33

CBSE Class 8 Maths Worksheet

Cubes and Cube Roots - Cubes

Answers

1.
S. Ramanujan
2.
20
3.
3
4.
Option D

5.
22
6.
11
7.
2
8.
79507
9.
30
10.
11
11.
Option A

12.
22
13.
970299
14.
(3/25)
15.
Option A

16.
3
17.
Option B

18.
9261
19.
45
20.
35937

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