Let’s add consecutive odd numbers 

Number of Odd Number

Sum of Consecutive Odd Numbers

1

1

= 1 = 1 2

2

1 + 3

= 4 = 2 2

3

1 + 3 + 5

= 9 = 3 2

4

1 + 3 + 5 + 7

= 16 = 4 2

5

1 + 3 + 5 + 7 + 9

= 25 = 5 2

6

1 + 3 + 5 + 7 + 9 + 11

= 36 = 6 2

7

1 + 3 + 5 + 7 + 9 + 11 + 13

= 49 = 7 2

Sum of n Odd Number = n 2

  1. Chapter 6 Class 8 Squares and Square Roots
  2. Concept wise

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.