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1. Which of the following is not a square number? (a) 4 (b) 9 (c) 16 (d) 24

2. The square of 23 is : (a) 529 (b) 526 (c) 46 (d) 429

3. The square of which of the following would be even number? (a) 2826 (b) 7779 (c) 1057 (d) 131

4. The square of which of the following would be odd number? (a) 431 (b) 272 (c) 1234 (d) 7928

5. Which of the following is a perfect square ? (a) 45 (b) 81 (c) 18 (d) 54

6. What will be the “ one's digit” in the square of 1234 ? (a) 6 (b) 2 (c) 8 (d) 9

7. What will be the number of zeros in the square of 400 ? (a) 5 (b) 1 (c) 3 (d) 4

8. The perfect square number between 30 and 40 is : (a) 35 (b) 39 (c) 36 (d) 32

9. The square of -9 is (a) -81 (b) 81 (c) 18 (d) -18

10. The square root of 6400 is (a) 80 (b) 81 (c) 32 (d) 23

11. By which smallest number 90 must be multiplied so as to make it a perfect square ? (a) 10 (b) 2 (c) 5 (d) 3

12. By which smallest number 48 must be divided so as to make it a perfect square ? (a) 2 (b) 3 (c) 6 (d) 4

13. Which smallest number should be added to 80 so as to make it a perfect square ? (a) 2 (b) 3 (c) 1 (d) 4

14. What could be the possible “one's digit” of the square root of 625? (a) 5 (b) 0 (c) 4 (d) 8

15. Which is the smallest three-digit perfect square? (a) 100 (b) 101 (c) 121 (d) 144

16. Which is the greatest three-digit perfect square? (a) 999 (b) 961 (c) 962 (d) 970

17. Which is the greatest 4-digit perfect square? (a) 9999 (b) 9990 (c) 9800 (d) 9801

18. Which is the smallest 4-digit perfect square? (a) 1024 (b) 1025 (c) 1000 (d) 1016

19. What will be the number of digits in the square root of 25600? (a) 3 (b) 2 (c) 5 (d) 4