Class 8, Maths, Chapter 6, Exercise 6.1, Solutions
Q.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
Q.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
Q.3. The squares of which of the following would be odd numbers?
(i) 431
(ii) 2826
(iii) 7779
(iv) 82004
Q.4.Observe the following pattern and find the missing digits.
112 = 121
1012 = 10201
10012 = 1002001
1000012 = 1 ……… 2 ……… 1
100000012 = ………………………
Q.5. Observe the following pattern and supply the missing numbers.
112 = 1 2 1
1012 = 1 0 2 0 1
101012 = 102030201
10101012 = ………………………
…………2 = 10203040504030201
Q.6.Using the given pattern, find the missing numbers.
12 + 22 + 22 = 32
22 + 32 + 62 = 72
32 + 42 + 122 = 132
42 + 52 + _2 = 212
52 + _2 + 302 = 312
62 + 72 + _2 = __2
Q.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
Q.8 (i) Express 49 as the sum of 7 odd numbers.
(ii) Express 121 as the sum of 11 odd numbers.
Q.9. How many numbers lie between squares of the following numbers?
(i) 12 and 13
(ii) 25 and 26
(iii) 99 and 100
NCERT Solutions For Class 8 Maths Chapter 6, Squares and Square Roots (All Exercises)
Class 8, Maths, Chapter 6, Squares and Square roots
Class 8, Maths, Chapter 6, Squares and Square roots, Exercise 6.1 ← You are here
Class 8, Maths, Chapter 6, Squares and Square roots, Exercise 6.2
Class 8, Maths, Chapter 6, Squares and Square roots, Exercise 6.3
Class 8, Maths, Chapter 6, Squares and Square roots, Exercise 6.4