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Without Adding Find the Sum 1 + 3 + 5 + 7 + 9 - Mathematics

Without adding find the sum 1 + 3 + 5 + 7 + 9

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Solution

We know that the sum of first n odd natural numbers is n2.

Here, we have to find the sum of first five odd natural numbers.

Therefore, 1 + 3 + 5 + 7 + 9 = (5)2 = 25

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APPEARS IN

NCERT Class 8 Maths Textbook
Chapter 6 Squares and Square Roots
Exercise 6.1 | Q 7.1 | Page 96
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