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Squares and Square Roots, Chapter 6 Class 8 Maths MCQs

1. Which of the following is not a square number?

(a) 4

(b) 9

(c) 16

(d) 24
 
 
 
 

Question 1 of 20

2. The square of 23 is :

(a) 529

(b) 526

(c) 46

(d) 429
 
 
 
 

Question 2 of 20

3. The square of which of the following would be even number?

(a) 2826

(b) 7779

(c) 1057

(d) 131
 
 
 
 

Question 3 of 20

4. The square of which of the following would be odd number?

(a) 431

(b) 272

(c) 1234

(d) 7928
 
 
 
 

Question 4 of 20

5. Which of the following is a perfect square ?

(a) 45

(b) 81

(c) 18

(d) 54
 
 
 
 

Question 5 of 20

6. What will be the “ one’s digit” in the square of 1234 ?

(a) 6

(b) 2

(c) 8

(d) 9
 
 
 
 

Question 6 of 20

7. What will be the number of zeros in the square of 400 ?

(a) 5

(b) 1

(c) 3

(d) 4
 
 
 
 

Question 7 of 20

8. The perfect square number between 30 and 40 is :

(a) 35

(b) 39

(c) 36

(d) 32
 
 
 
 

Question 8 of 20

9. The square of -9 is

(a) -81

(b) 81

(c) 18

(d) -18
 
 
 
 

Question 9 of 20

10. The square root of 6400 is

(a) 80

(b) 81

(c) 32

(d) 23
 
 
 
 

Question 10 of 20

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
 
 
 
 

Question 11 of 20

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
 
 
 
 

Question 12 of 20

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
 
 
 
 

Question 13 of 20

14. What could be the possible “one’s digit” of the square root of 625?

(a) 5

(b) 0

(c) 4

(d) 8
 
 
 
 

Question 14 of 20

15. Which is the smallest three-digit perfect square?

(a) 100

(b) 101

(c) 121

(d) 144
 
 
 
 

Question 15 of 20

16. Which is the greatest three-digit perfect square?

(a) 999

(b) 961

(c) 962

(d) 970
 
 
 
 

Question 16 of 20

17. Which is the greatest 4-digit perfect square?

(a) 9999

(b) 9990

(c) 9800

(d) 9801
 
 
 
 

Question 17 of 20

18. Which is the smallest 4-digit perfect square?

(a) 1024

(b) 1025

(c) 1000

(d) 1016
 
 
 
 

Question 18 of 20

19. What will be the number of digits in the square root of 25600?

(a) 3

(b) 2

(c) 5

(d) 4
 
 
 
 

Question 19 of 20

20. The square root of 12.25 is _______________ .

(a) 3.5

(b) 2.5

(c) 35

(d) 25
 
 
 
 

Question 20 of 20