CBSE Class 8 Maths MCQs on Perfect Squares and Properties of Square Numbers (NCERT Based)
CBSE Class 8 Maths MCQs on Perfect Squares and Properties of Square Numbers
Class: 8
Subject: Mathematics
Chapter: A Square and A Cube
Topic: Perfect Squares & Properties
Board: CBSE (Based on Latest NCERT Curriculum)
Subject: Mathematics
Chapter: A Square and A Cube
Topic: Perfect Squares & Properties
Board: CBSE (Based on Latest NCERT Curriculum)
1. Which of the following is a perfect square?
Answer: A) 225
225 = 15 × 15. A perfect square is the product of a number multiplied by itself.
225 = 15 × 15. A perfect square is the product of a number multiplied by itself.
2. The square of 18 is:
Answer: A) 324
18² = 18 × 18 = 324.
18² = 18 × 18 = 324.
3. Which number is not a perfect square?
Answer: C) 178
178 lies between 13² (169) and 14² (196), so it is not a perfect square.
178 lies between 13² (169) and 14² (196), so it is not a perfect square.
4. The square root of 169 is:
Answer: C) 13
13 × 13 = 169.
13 × 13 = 169.
5. A perfect square never ends with digit:
Answer: C) 8
No perfect square ends in 2,3,7, or 8.
No perfect square ends in 2,3,7, or 8.
6. The number of zeros at the end of a perfect square is always:
Answer: B) Even
Zeros come in pairs because squares multiply identical factors.
Zeros come in pairs because squares multiply identical factors.
7. 441 is a perfect square of:
Answer: C) 21
21 × 21 = 441.
21 × 21 = 441.
8. Which of the following is the square of 25?
Answer: A) 625
25² = 25 × 25 = 625.
25² = 25 × 25 = 625.
9. The smallest perfect square divisible by 6 is:
Answer: D) 36
36 = 6 × 6 and divisible by 6.
36 = 6 × 6 and divisible by 6.
10. If a number ends in 5, its square ends in:
Answer: C) 25
Example: 15² = 225, 25² = 625.
Example: 15² = 225, 25² = 625.
11. The square root of 256 is:
Answer: C) 16
16 × 16 = 256.
16 × 16 = 256.
12. Which of the following is a perfect square?
Answer: A) 1024
32 × 32 = 1024.
32 × 32 = 1024.
13. The unit digit of square of 7 is:
Answer: B) 9
7² = 49.
7² = 49.
14. Which number must be multiplied with 50 to make it a perfect square?
Answer: A) 2
50 × 2 = 100 = 10².
50 × 2 = 100 = 10².
15. The square of an even number is always:
Answer: B) Even
Even × Even = Even.
Even × Even = Even.
16. Which of the following is the square root of 900?
Answer: C) 30
30 × 30 = 900.
30 × 30 = 900.
17. The square of 13 is:
Answer: A) 169
13² = 169.
13² = 169.
18. Which of the following is not a perfect square?
Answer: C) 420
20² = 400 and 21² = 441, so 420 is not a square.
20² = 400 and 21² = 441, so 420 is not a square.
19. The square root of 1 is:
Answer: B) 1
In Class 8, we consider only positive square roots.
In Class 8, we consider only positive square roots.
20. Which of the following statements is true?
Answer: C) The square of an odd number is odd
Odd × Odd = Odd. Hence square of an odd number is always odd.
Odd × Odd = Odd. Hence square of an odd number is always odd.