CBSE Board Practice

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CBSE Grade VIII - Cubes and Cube Roots
Question 1
1.
    • Find the value of
    • 5 3
       
    • −
    • 4 3
       
  • 61
  • 64
  • 60
  • 58
  • 62
Question 2
2.
    • Find the cube of
    • 28
  • 787
  • 784
  • 21949
  • 21952
  • 21955
Question 3
3.
    • Find the cube root of
    • 216
  • 9
  • 39
  • 6
  • 3
  • 36
Question 4
4.
The smallest number by which 16875 must be divided so that the quotient is a perfect cube is?
  • 2
  • 4
  • 5
  • 8
  • 6
Question 5
5.
Which of the following is a perfect cube?
  • 729
  • 510
  • 126
  • 10
  • 26
Question 6
6.
    • Find the
    • cube root
    • of
    • (
      -125
      27
      		 )
  • -5
  • (
    -7
    3
    		 )
  • -1
  • (
    -5
    3
    		 )
Question 7
7.
The smallest number by which 32 must be multiplied so that the product is a perfect cube is?
  • 1
  • 3
  • 0
  • 2
  • 4
Question 8
8.
Which of the following is not a perfect cube?
  • 515
  • 27
  • 729
  • 216
  • 8
Question 9
9.
    • Find the value of
    • 21 3
       
    • +
    • 20 3
       
  • 17261
  • 17259
  • 17264
  • 17262
  • 17260
Question 10
10.
    • Find the
    • cube root
    • of
    • 64
  • 2
  • 7
  • 5
  • 4
  • 3