NCERT - Mathematics

Book: NCERT - Mathematics

Chapter: 6. Squares and Square Roots

Subject: Maths - Class 8th

Q. No. 6 of Exercises 6.1

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6

Using the given pattern, find the missing numbers

As per the given pattern, it can be observed that,

(i) The third number is the multiplication of the first two numbers


(ii) The fourth number can be obtained by adding 1 to the third number


Hence, the missing numbers in the pattern will be:


42 + 52 +202 = 212


52 +62 + 302 = 312


62 + 72 +422 =432


8

Chapter Exercises

Exercises 6.1
Exercises 6.2
Exercises 6.3
Exercises 6.4

More Exercise Questions

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 + I1 + 13 + 15 + 17 +19

(iii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23
8

Express 49 as the sum of 7 odd numbers.
8

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