CBSE Board Practice

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

    • √

      225
    • =
    • 15
    • ,
    • find the value of

    • √

      2.25
  • 3.5
  • 1.5
  • 9.5
  • 15
  • 0.1
Question 2
2.
Find the smallest 2 digit number which is a perfect square?
  • 16
  • 13
  • 17
  • 19
  • 15
Question 3
3.
Find the greatest 2 digit number which is a perfect square?
  • 81
  • 80
  • 82
  • 83
  • 79
Question 4
4.
    • If

    • √

      6084
    • =
    • 78
    • ,
    • find the value of

    • √

      60840000
  • 78000
  • 7800
  • 780
  • 7802
  • 7798
Question 5
5.
Find the smallest 3 digit number which is a perfect square?
  • 103
  • 99
  • 101
  • 100
  • 97
Question 6
6.
    • The solution of

    • √

      5
    • lies between
  • 2.2360 and 2.2361
  • 2.2362 and 2.2363
  • 2.2361 and 2.2362
  • 2.2358 and 2.2359
  • 2.2359 and 2.2360
Question 7
7.
Find the greatest 3 digit number which is a perfect square?
  • 961
  • 958
  • 960
  • 962
  • 963
Question 8
8.
Find the greatest 4 digit number which is a perfect square?
  • 9802
  • 9799
  • 9803
  • 9800
  • 9801
Question 9
9.
Identify the Pythagorean triplet whose largest number is 82
  • {19,79,82}
  • {18,80,82}
  • {20,81,82}
  • {17,81,82}
  • {16,78,82}
Question 10
10.
How many digits are there in the square root of 40000?
  • 0
  • 3
  • 2
  • 4
  • 6