CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade VIII - Squares and Square Roots
Question 1
1.
The smallest number by which 2048 must be divided so that the quotient is a perfect square is?
  • 5
  • (-1)
  • 2
  • 3
  • 1
Question 2
2.
    • Find the
    • square root
    • of
    • 16
      9
  • 4
    5
  • 4
    3
  • 4
  • 2
  • 2
    3
Question 3
3.
    • The solution of

    • √

      18
    • lies between
  • 4.2425 and 4.2426
  • 4.2428 and 4.2429
  • 4.2426 and 4.2427
  • 4.2424 and 4.2425
  • 4.2427 and 4.2428
Question 4
4.
How many digits are there in the square root of 777924?
  • 5
  • 2
  • 0
  • 3
  • 4
Question 5
5.
Find the smallest 4 digit number which is a perfect square?
  • 1023
  • 1022
  • 1027
  • 1024
  • 1025
Question 6
6.
Which of the following is a Pythagorean triplet?
  • {18,82,81}
  • {18,78,82}
  • {18,79,81}
  • {18,80,82}
  • {18,81,83}
Question 7
7.
    • Find the square root of
    • 4835.0250
  • 71.5343
  • 69.5343
  • 68.5343
  • 67.5343
  • 70.5343
Question 8
8.
Find the greatest 5 digit number which is a perfect square?
  • 99854
  • 99859
  • 99857
  • 99855
  • 99856
Question 9
9.
Which of the following is not a perfect square?
  • 1600
  • 78
  • 676
  • 25
  • 324
Question 10
10.
Which of the following is a perfect square?
  • 1366
  • 1936
  • 2503
  • 677
  • 2400