CBSE Board Practice

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CBSE Grade VIII - Squares and Square Roots
Question 1
1.
How many digits are there in the square root of 625?
  • 2
  • (-1)
  • 3
  • 1
  • 5
Question 2
2.
Identify the Pythagorean triplet whose middle number is 48
  • {15,48,47}
  • {14,48,50}
  • {16,48,50}
  • {13,48,49}
  • {15,48,49}
Question 3
3.
Find the smallest 3 digit number which is a perfect square?
  • 102
  • 99
  • 100
  • 101
  • 97
Question 4
4.
Find the smallest perfect square which is divisible by each of the numbers 16,10,4
  • 800
  • 1280
  • 801
  • 400
  • 402
Question 5
5.
If a number has 4 zeros at the end, its square has how many zeros?
  • 6
  • 7
  • 11
  • 8
  • 9
Question 6
6.
Which of the following is a perfect square?
  • 1293
  • 326
  • 675
  • 64
  • 2402
Question 7
7.
Find the least number that must be added to 1015 to get a perfect square?
  • 11
  • 10
  • 9
  • 6
  • 8
Question 8
8.
Find the greatest 2 digit number which is a perfect square?
  • 82
  • 79
  • 81
  • 80
  • 84
Question 9
9.
    • If

    • √

      1089
    • =
    • 33
    • ,
    • find the value of

    • √

      108900
  • 328
  • 330
  • 33
  • 3300
  • 332
Question 10
10.
    • Find the square root of
    • 498.500
  • 23.327
  • 22.327
  • 24.327
  • 21.327
  • 20.327