Question

Find the sum of the first 100 natural numbers

Answer 1

Formula for sum of n natural numbers is= n(n+1)/2
=100*101/2=50*101=5050

Answer 2

Hi ,

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We know that ,

Sum of first n natural numbers

= n( n + 1 )/2

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Here

n = 100 ,

Sum of first 100 natural numbers

= [ 100( 100 + 1 ) ]/2

= ( 100 × 101 )/2

= ( 10100 )/2

= 5050

I hope this helps you.

: )