ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Powers and Roots
Question 1
1.
Find the smallest perfect square which is divisible by each of the numbers 18,9,4
  • 648
  • 36
  • 325
  • 38
  • 72
Question 2
2.
Which of the following is not a perfect square?
  • 1225
  • 2209
  • 441
  • 35
  • 841
Question 3
3.
The smallest number by which 243 must be divided so that the quotient is a perfect square is?
  • 6
  • 4
  • 2
  • 3
  • 0
Question 4
4.

    • √

      121
      49
    • =
  • 11
    5
  • 13
    7
  • 11
    7
  • 9
    7
  • 11
    9
Question 5
5.
The smallest number by which 128 must be multiplied so that the product is a perfect square is?
  • 2
  • 1
  • 3
  • (-1)
  • 5
Question 6
6.
Find the smallest 4 digit number which is a perfect square?
  • 1026
  • 1023
  • 1025
  • 1022
  • 1024
Question 7
7.
Which of the following is a perfect square?
  • 1027
  • 2499
  • 729
  • 322
  • 2026
Question 8
8.
What is the unit place digit in the square of 22?
  • 7
  • 3
  • 5
  • 0
  • 4
Question 9
9.
    • Find the cube root of
    • 343
  • 4
  • 49
  • 7
  • 52
  • 10
Question 10
10.
    • -8
      0
    • =
  • -1
  • undefined
  • 0
  • 1
  • ∞