Class 8| Chapter 5| Exercise 5.1| Squares and Square Roots|

Описание: Squares and square roots| Class 8| Exercise 5.1| 6.

1. What will be the unit digit of the squares of the following numbers?
(i) 81 (ii) 272 (iii) 799 (iv) 3853 (v) 1234 (vi) 26387 (vii) 52698 (viii) 99880 (ix) 12796 (x) 55555

2. The following numbers are obviously not perfect squares. Give reason.
(i) 1057 (ii) 23453 (iii) 7928 (iv) 222222 (v) 64000 (vi) 89722 (vii) 222000 (viii) 505050

3. The squares of which of the following would be odd numbers?
(i) 431 (ii) 2826 (iii) 7779 (iv) 82004

4. Observe the following pattern and find the missing digits.

5. Observe the following pattern and supply the missing numbers.

6. Using the given pattern, find the missing numbers.

7. Without adding, find the sum.
(i) 1 + 3 + 5 + 7 + 9
(ii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 +19
(iii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

8. (i) Express 49 as the sum of 7 odd numbers.
(ii) Express 121 as the sum of 11 odd numbers.

9. How many numbers lie between squares of the following numbers?
(i) 12 and 13 (ii) 25 and 26 (iii) 99 and 100


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Book - NCERT
Class - 8
Chapter - 5 - Squares and square Roots
Exercise - 5.1
Question Number - 1,2,3,4,5,6,7,8, & 9


📘 About this video:
in this video, we will learn squares and square roots.
topics covered in this chapter are:
✔ meaning of square numbers
✔ properties of square numbers
✔ patterns related to squares
✔ finding the square of a number
✔ square roots by prime factorization
✔ square roots by division method
✔ estimating square roots
✔ questions and examples from ncert
📚 suitable for: class 8 maths (ncert / cbse)
🎯 watch till the end to understand every concept easily!

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