CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade VIII - Squares and Square Roots
Question 1
1.
    • The solution of

    • √

      14
    • lies between
  • 3.72 and 3.73
  • 3.73 and 3.74
  • 3.76 and 3.77
  • 3.74 and 3.75
  • 3.75 and 3.76
Question 2
2.
    • The solution of

    • √

      7
    • lies between
  • 2.5 and 2.6
  • 2.7 and 2.8
  • 2.6 and 2.7
  • 2.8 and 2.9
  • 2.4 and 2.5
Question 3
3.
    • Find the
    • square root
    • of
    • 9
  • 4
  • 2
  • 5
  • 0
  • 3
Question 4
4.
    • If

    • √

      2304
    • =
    • 48
    • ,
    • find the value of

    • √

      23040000
  • 480
  • 4802
  • 4800
  • 48000
  • 4798
Question 5
5.
    • Find the prime factorization of
    • 40824
  • 2 3
     
    		✕
    3 4
     
    		✕
    7
  • 2 3
     
    		✕
    3 6
     
    		✕
    7 2
     
  • 2 3
     
    		✕
    3 5
     
    		✕
    7
  • 2 3
     
    		✕
    3 6
     
    		✕
    9
  • 2 3
     
    		✕
    3 6
     
    		✕
    7
Question 6
6.
Identify the Pythagorean triplet whose smallest number is 12
  • {12,36,39}
  • {12,36,38}
  • {12,37,38}
  • {12,35,37}
  • {12,37,39}
Question 7
7.
    • The solution of

    • √

      12
    • lies between
  • 3.4639 and 3.4640
  • 3.4641 and 3.4642
  • 3.4642 and 3.4643
  • 3.4643 and 3.4644
  • 3.4640 and 3.4641
Question 8
8.
Find the least number that must be subtracted from 533 to get a perfect square?
  • 5
  • 7
  • 4
  • 2
  • 3
Question 9
9.
How many digits are there in the square root of 8281?
  • 5
  • 0
  • 3
  • 1
  • 2
Question 10
10.
The smallest number by which 343 must be multiplied so that the product is a perfect square is?
  • 8
  • 7
  • 9
  • 5
  • 6