Odd no Addition Tricks

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Odd no Addition

There's a math rule : Sum of the first n odd numbers = n × n = n²

1.  The numbers are: 1, 3, 5, 7, 9, 11, 13

2.  These are the first 7 odd numbers.

3.   There's a math rule: Sum of the first n odd numbers = n × n = n²

4.      Here, n = 7 (since there are 7 numbers)

5.      So, the sum = 7² = 49

Answer: 49